The use of "both...and" in the sentence indicates that the two verb forms are actually contrasted in the sentence and should not be parallel. Therefore, the verb in the underlined portion should indicate either what is taking place now or will take place in the future. "And where it is going," is the correct answer choice.

The pairing of the two phrases indicate that they need to have a parrallel  tense for each verb. Only two answer choices, "to play with toys and to run in parks," and "playing with toys, running in parks," are parrallel, and "playing with toys, running in parks," should be separated by a conjunction.

The rule of parallel structure tells us that the sentence should be consistent in its pattern. Because the sentence refers to “all first aid kits,” all of the nouns—"bandages," "alcohol swabs," "pain relievers," and "an ointment"—should be plural. "An ointment" is the only noun in the list that isn't plural, so replacing it with "ointments" fixes the sentences error.

The tense of all verbs must be parallel, and since the given verb “drinking” is a present participle, the only appropriate options are “watching” and “planning.”

You can therefore eliminate options in which "watch" and "plan" don't agree with each other, as well as options in which those verbs don't agree with "drinking." You are left only with "My mother begins each day by drinking coffee, watching the news, and planning the rest of her day," which is the correct answer.

One cannot compare “works” to “painters.”  One must compare the works of Degas to those of other painters.

The last phrase of the sentence is confusing, as it is unclear exactly who is becoming "a truly great artist." The sentence is best served by making it clear who can become the "truly great artist." The answer choice that best fixes the issue is "Artistic ability is an inborn skill, but always needs to be developed for someone to become a truly great artist."

The problem with the end of the sentence is that the underlined phrase has an unclear reference. "They could as young" does not have an obvious comparison being made. The answer choice "they could when they were young," is the best improvement on the sentence.

The initial sentence contains an illogical comparison. Her grades cannot be higher than the other students. They can only be higher than the grades of the other students. In this sentence, the pronoun those can stand in for grades.

The participle "excited" modifies the subject of the main clause of the sentence, but it's still illogical to say that a decision is excited. The only logical subject is Kim, but "Kim first had to decide where it was to rent mats and space" is awkward and unidiomatic, so the best choice is "Kim first had to decide where to rent mats and space."

The underlined phrase functions as a comparison in the sentence, between humans and "most animals." Thus, the phrase needs to appropriately compare in the same manner as the other mention of the trait in the sentence. "Than humans" is the correct answer choice. The "did" is an extraneous verb that introduces an error by being in the past tense when the verb that appears prior to it in the sentence, "have," is in the present tense.