"Horrify" means scare greatly and make very afraid. "Petrify" can mean turn something to stone over a long period of time (like "petrified wood") or scare greatly to the point where someone cannot move, so "petrify" is the correct answer.

"Admire" means respect, look up to, or view as a role model, so "respect" is the correct answer. None of the other answer choices are close in meaning to "admire": "demand" means forcefully order someone to give you something; "divide" means split into two groups or parts, "despise" means greatly dislike or hate, and "encourage" means motivate or hearten.

“Fathom” means understand or know how something works. To provide further help, “intend” means mean to do something; “wonder” means think about something you'd like to know more about; “consider” means think about or think about another option; and “deplore” means hate.

To be "enraged" means to be very angry. You can see the base word, "rage" within it. You could say, "It enraged my mother when I failed to clean my room." "Saddened" means to be made sad. "Excited" means to be interested or made animated.

To "acknowledge" most closely means to admit or recognize something. "Knowledge" is a root word; however it should not be confused with educate or other words dealing with the acquisition of knowledge. "Deny" is an antonym to "acknowledge"

"Grow" and "become" are synonyms. They can both be used to refer to emotional changes  and other conditions; for example, "They grow tired." "They become annoyed." The other words do not share this meaning or function.

The problem presents several verbs. The verb closest in meaning to "sulk" is "mope." To "sulk" or "mope" means to behave in a way that clearly displays sadness: "After his dog disappeared, he would mope around the house, sulking." "Giggle" and "laugh" are antonyms of "sulk," while "sling" means to throw something.

"Select" is a word that can be used as a verb or an adjective, but because all of the answer choices are verbs, we will need to consider it as a verb. When used as a verb, "select" means "carefully choose as being the best or most suitable." So, we need to pick out a verb that means something like "carefully choose." "Reject" cannot be the correct answer, then, because "reject" is a word that when used as a verb, means "dismiss as inadequate, inappropriate, or not to one's taste," making it an antonym, not a synonym, of "select." "Pick," however, is a verb that can mean "choose (someone or something) from a number of alternatives, typically after careful thought," and because "pick" is the answer choice closest in meaning to "select," "pick" is the correct answer.

"Cheer" means to encourage.

"Bother" can replace "annoy" to maintain the same meaning of the sentence.