How did Lenin plan to apply Marxism to Russia

A) by putting Mensheviks in charge of government policy

B) by spontaneously overthrowing capitalism

C) by creating an elite socialist ruling the party to lead a revolution

D) by instituting widespread suffrage reform

Letter A is wrong because, despite also being a left group, the Mensheviks were moderate.

Spontaneous overthrow is not something that socialists and communists generally believe in and certainly, Lenin didn't, so it isn't B.

Suffrage would also not give Lenin what he wanted since it hadn't done it so far, so it isn't D.

The answer is:

C) by creating an elite socialist ruling the party to lead a revolution