Select the option that expresses the given sentence in active voice.
By whom was grammar taught to you?​

Correct option is D

The correct active voice of the given sentence is (d) Who taught you grammar?
· Explanation: In passive voice, the subject receives the action, and in active voice, the subject performs the action.
· Passive Voice: By whom was grammar taught to you?
· Active Voice: Who taught you grammar?
Structure:
· Passive Voice: Object + was/were + past participle + by + Subject
· Active Voice: Subject + verb + object
· Example: The book was read by her → She read the book.