Correct option is A
The correct active voice of the given sentence is "The chef baked the cake in the kitchen."
Rules of conversion from passive to active voice:
1.
Passive Voice Structure:
· Object + was/were + past participle + by + subject
· "The cake was baked by the chef."
2.
Active Voice Structure:
· Subject + verb (past) + object
· "The chef baked the cake."
Example:
·
Passive: The letter was written by John.
·
Active: John wrote the letter.
Why other options are incorrect:
·
(b) The kitchen was baking the cake by the chef. → Incorrect as "kitchen" cannot be the subject.
·
(c) The cake is being baked by the chef in the kitchen. → Incorrect tense ("is being" is present continuous).
·
(d) The cake was being baked by the chef in the kitchen. → Incorrect tense ("was being" is past continuous).