He will be arriving quite late,so by the time he comes ,the play ______

He will be arriving quite late,so by the time he comes ,the play _______?

A would have begun

B will begun

C will have begun

D would begun

Correct Answer: Option C

By the time দ্বারা যখন দুটি clause যুক্ত হয় তখন একটি অংশ present indefinite এবং অপর অংশ future indefinite /perfect /perfect continuous tense হয় ।