This is a sentence fragment, because it is incomplete, it needs to be completed in order to be a sentence.
The answer is b. hope i helped :D
The sentence that has the correct subject-verb agreement is the second one:
Loud claps of thunder shake the house.
Since the subject <em>loud claps of thunder </em>is in the plural form, the verb <em>shake </em>also has to be in the plural form.
Its b,In a democracy, it is a duty and privilege to vote for governmental leaders.
