The citizens' movement had, to no avail, _______ the government to concede to its demands — eventually their earnest entreaties became nothing more than a silent protest.

The movement asked for something to the Gov but, eventually, it was a waste of time.

The movement itself was shutted down


A,B, and E are out of scope

D means to sue a trick. But here the movement asked for something with a pungent action.

C is the answer