Why Correct: Mogolmari is a Buddhist archaeological site located in the Medinipur district of West Bengal, dating to the early centuries CE. Distractor Analysis: Ahicchatra is an ancient city in Uttar Pradesh. Sisupalgarh is a fortified settlement in Odisha. Bamangaon is a site in Maharashtra. None of these are in West Bengal. Takeaway: West Bengal's major archaeological sites include Mogolmari, Chandraketugarh, and Tamralipta. Mogolmari is particularly known for its Buddhist stupa and monastery remains.