Which pair is correctly matched based on India's physical divisions?

Correct answer: Sundarbans Ganga Brahmaputra Delta

The direct answer is A: Sundarbans—Ganga-Brahmaputra Delta. A delta forms where a river slows down near its mouth and deposits the sediment it carries. The Ganga, Brahmaputra, and their distributaries have built one of the world's largest deltaic regions in the Bay of Bengal. The Sundarbans occupy a major part of this low, tidal delta and are famous for dense mangrove forests, muddy islands, creeks, and tidal channels. Option A is correct because it matches a well-known physical division of India with its location. Option B is wrong: Lakshadweep is a group of coral islands in the Arabian Sea, not a Himalayan glacier. Option C is wrong: the Thar Desert lies mainly in western Rajasthan, while the Eastern Ghats are a separate discontinuous hill system along the eastern side of peninsular India. Option D is wrong: the Shiwalik is an outer Himalayan range, whereas the Deccan Trap is a volcanic basaltic region of the peninsular plateau. These are not the same physical feature. Memory cue: Sundarbans means mangroves, tides, and the Ganga-Brahmaputra delta.