Answer: C) Margot prefers watching a hockey game to watching ice skating performances.
Explanation: parallelism is a literary device that consists in the repetition of the grammatical structure of different words or phrases in a sentence or paragraph, in order to emphasize an idea or to create an impact in the audience. The given sentence contains a faulty parallelism because when saying what she prefers, one element is a noun ("the action") and the other one is a verb ("watching"). The option that corrects this error, is the corresponding to option C, because both elements are now verbs ("watching a hockey game" and "watching ice skating").
