"Compunction" is a feeling of guilt and sadness for something done wrong, guilt, regret. Additionally, "ecstasy" is deep happiness; "sorrow" is great sadness; "dread" is deep fear and anxiety.

The correct answer is "option."

In this case, "alternative" is a noun that means available as another possibility. 

"Option" is a noun that is defined as a thing that is or may be chosen (as a possibility).

"Option" is a synonym (has a similar meaning) of "alternative."

The noun "repercussion" refers to the consequences of something, the outcome of an action, the effects of an action. Additionally, "permission" is consent, approval to do something; "reconnaissance" is a mission designed to get more information, 'recon'; a "protest" is a formal gathering of people to express anger or disapproval about something in the government or society; "resemblance" means likeness, having the appearance of something else.

The noun "epiphany" means a sudden realization, an insight into the nature of something. Additionally, an "aspiration" is a goal, something that one desires to accomplish; "obese" means medically diagnosed as overweight, fat; "eminent" means famous within a certain area, distinguished and notable; a "boon" is something helpful or useful, a gift, a blessing.

The noun "ambiance" refers to the character, atmosphere, climate of an environment. So, somewhere warm and friendly will have a positive and welcoming "ambiance." Additionally, "occupation" and "vocation" are synonyms, both words mean job, what you do for a living; a "fissure" is a crack in something; "fusion" is the process of joining two or more things together.

The noun "decadence" refers to the moral decline of a society due to a loss of moral values. Synonyms include "sin," "vice," and "depravity." Additionally, "virtue" is the antonym of "vice," it means goodness, righteousness. Finally, "sloth" (which means laziness), "greed," and "envy" are examples of the "seven deadly sins."

The noun "genre" means category, classification, where something fits based on what characteristics it shares with other similar things. So, for example a funny movie about love would fit under the "genre" of romantic-comedy movies. Additionally, a "prediction" is a statement made about what one thinks will happen in the future; an "infant" is a baby; a "souvenir" is an item kept to remember something, a memento; a "caretaker" is someone charged with looking after someone or something else.

"Respite" means a "brief rest," a breather, a hiatus.

"Sanctity" means holiness, righteousness, or solemnity.

"Residue" means the substance that is left over from something, the debris, the trace.

"Chronology" means a list of temporal events, a timetable, an agenda.

"Hibernation" is the act of sleeping through the winter. It can also mean a state of laziness or inactivity.

A "glitch" is a malfunction, an error in a piece of machinery or technology. Additionally, an "adage" is an old-saying meant to impart some lesson; a "buffoon" is a silly and foolish person; an "adjustment" is a change made to deal with a change in circumstance; an "excursion" is an outing, a trip, a journey.

The noun "inference" means a conclusion reached using evidence, logical reasoning, and a small amount of guesswork. This is closest in meaning to "deduction" which means a decision reached through a series of mental steps based on relevant evidence. As an example, I might "deduce" or "infer" that it was raining outside because my dog came inside with wet fur, however unless I actually see the rain myself I do not know whether this is true or whether my dog simply swam in the river or drank from a hose, so I cannot be sure. Additionally, "edification" is instruction, teaching; "emancipation" is the process of being freed from slavery, servitude, or any other form of legal, political, or economic restriction; "suffrage" is the right to vote; "clemency" is mercy, forgiveness.