As soon as he saw the police, he put the bag in the dustbin. (t simple)

• ক Because of seeing the police, he putting the bag in the dustbin.
• খ On seeing the police, he put the bag in the dustbin. ✅ সঠিক উত্তর
• গ In spite of seeing the police, he ha put the bag in the dustbin.
• ঘ After seeing the police, he put the bag in the dustbin.