Question

which sentence requires no revision?new jersey is the state where i grew up in.christian knows where the party is at.which bench will you be sitting on?where are your parents driving to?

Explanation:

The incorrect sentences end with unnecessary prepositions ("in", "at", "to") that are redundant with the wh-word "where" or "which" already conveying location/direction. The correct sentence uses "on" appropriately to complete the phrasal verb "sitting on" without redundancy.

Answer:

C. Which bench will you be sitting on?