Answer:
C) He wished he could expedite the process, but the paperwork was stalled.
Step-by-step explanation:
Option C is the correct answer because it uses "expedite" as a verb, it can be replaced by the verbs "accelerate" or "speed up" and it is in contrast with the adjective "stalled" which means the opposite of speeding up: to stop, to come to a standstill.
Option A is incorrect because the sentence does not express the definition of "expedite", option B is wrong because it uses "expedite" as an adjective and not as a verb, and option D is also incorrect because "expedite" is used as a noun.