Select the correct active form of the given sentence.
The furniture in the office is being polished by Mumna.

Correct option is A

The correct active voice of the given sentence is (a) Mumna is polishing the furniture in the office.
Explanation:
In the given passive sentence — “The furniture in the office is being polished by Mumna” —
→ Subject: The furniture in the office
→ Verb: is being polished
→ Agent: by Mumna
Rules of conversion:
Passive Voice → Active Voice
Structure:
· Passive: Object + is/am/are + being + past participle + by + Subject
· Active: Subject + is/am/are + verb + object
Applying the rule:
→ Mumna (Subject) + is + polishing (verb) + the furniture in the office (object).
Other options incorrect because:
· (b) uses past continuous (was polishing) – wrong tense.
· (c) uses present perfect continuous (has been polishing) – wrong structure.
· (d) uses past perfect continuous (had been polishing) – incorrect tense.