Why is the Luni River linked with inland drainage?

Correct answer: It flows in a desert region and does not form a clear sea delta

The direct answer is option A, because the Luni flows through a desert region and does not form a clear sea delta. Luni rises near the Aravalli region and flows through the dry parts of Rajasthan. In its lower course, the river's water becomes increasingly affected by aridity and salinity, and it ends in the marshy Rann of Kachchh rather than forming a large, clear delta in the sea. This is why it is linked with inland or desert drainage in school geography. Option A is correct in the context of the question. Option B is wrong because Luni is not the largest tributary of the Ganga; it is a western Rajasthan river. Option C is wrong because it does not form a large delta in the Bay of Bengal. Option D is wrong because Luni is not a Himalayan glacier-fed river; its setting is the Aravalli and Thar desert region. A careful exam cue is: western Rajasthan, arid course, saline water, and Rann of Kachchh point to Luni. Do not assume every river reaches the sea through a delta.