Select the Answer That Corrects the Comma Splice or Run-On

Select the answer that corrects the comma splice or run-on sentence.
-Barbara wanted the promotion unfortunately she compromised her morals to get it.

A) Barbara wanted the promotion, unfortunately; she compromised her morals to get it.
B) Barbara wanted the promotion, unfortunately, she compromised her morals to get it.
C) Barbara wanted the promotion; unfortunately, she compromised her morals to get it.
D) Barbara wanted the promotion, unfortunately she compromised her morals to get it.