Which matching is correct based on physical features?

Correct answer: Sundarbans mangrove delta

Direct answer: Option A is correct: the Sundarbans are a mangrove delta. The Ganga, Brahmaputra and Meghna river systems carry sediment toward the Bay of Bengal. Their deposits form a large delta, and the tidal, muddy, saline environment supports mangrove vegetation. The Sundarbans is the famous mangrove region in this delta. Option A is therefore a correct physical-feature match. Option B is wrong because Bhabar is a porous belt along the Himalayan foothills where streams disappear into coarse sediments; it is not a coral island. Option C is wrong because the Thar is a hot desert, not a glacier. Option D is wrong because Lakshadweep consists mainly of coral islands and reefs, not a river plain. The correct matching habit is to connect each place with its defining landform: Sundarbans—mangrove delta, Bhabar—foothill belt, Thar—desert, Lakshadweep—coral islands.