'I did it.' বাক্যটির passive form কী?

A It is done by me.

B It has been done by me.

C It was done by me.

D By me it was done.

Correct Answer: Option C

Present perfect tense যুক্ত active voice কে passive voice এ রুপান্তর করার নিয়ম-

Structure:
Object এর subject + have been/ has been + verb এর past participle form + by + subject এর object.
It has to be done by me.