4.

Answer and Explanation

Your Answer is

Correct Answer is F

Explanation

whisk "Take... away" This sentence expresses "skiers rely on energy-intensive lifts to send them up the mountain." Here the to do purpose adverbial should be used.

G item: who cannot modify the front noun chairlifts.

Item H: whisked cannot be a predicate verb here, because rely has appeared in the previous text, so it is judged to be a passive attributive, chairlift cannot be taken away, and the semantics do not match.

Item J: The original form of the verb is wrong.