English Tense Tense Question #2940 (CAT-I)

Identify the correct sentence involving the use of 'since':

A Since my father has joined this post, he did not take bribe.
B Since my father joined this post, he did not take bribe.
C Since my father joined this post, he was not taking bribe.
D Since my father joined this post, he has not taken bribe.
Correct Answer & Explanation
Option D
Option D is the correct answer according to official curriculum guidelines.