She succeeded … her good work.

✅ কেন সঠিক: ‘her good work’ একটি noun phrase। noun-এর আগে প্রয়োজন preposition — ‘because of’। because, since, as হলো conjunction; এদের পরে clause (subject + verb) বসে।

❌ অন্য অপশন: because / since / as — এরপর পূর্ণ clause লাগত (because she worked well)।

💡 মনে রাখুন: because of / due to / owing to + noun; because / since / as + clause।