She played on the flute. Passive form is—

✅ কেন সঠিক: Prepositional verb (‘play on’)-এর passive-এ preposition বাদ যায় না: The flute was played on by her.

❌ অন্য অপশন: ক-তে ‘on’ বাদ পড়েছে; গ-তে ভুল preposition; ঘ-তে tense বদলে গেছে।

💡 মনে রাখুন: They laughed at him → He was laughed at by them।