Why does Meghalaya Plateau appear separate even though it is considered a northeastern extension of the Peninsular Plateau?

Correct answer: Ganga Brahmaputra plains extend between them

The direct answer is A. The Meghalaya Plateau is regarded as a northeastern extension of the Peninsular Plateau, but it appears physically separated from the main block because the Ganga–Brahmaputra plains lie between them. In other words, geological and regional classification can show a connection, while the intervening low plain makes the plateau look separate on a map. Option A is correct. Option B is wrong because the Thar Desert lies in western India, not between the Peninsular Plateau and Meghalaya. Option C is wrong because the Arabian Sea is west of the peninsula and cannot explain the separation in northeast India. Option D is wrong because Lakshadweep is an island group in the Arabian Sea and is unrelated to this land connection. The Meghalaya Plateau includes the Garo, Khasi and Jaintia hills and is separated from the Chotanagpur-related plateau region by the broad alluvial plains. Memory cue: Meghalaya is a plateau extension, but plains make it look detached.