If a question gives pebbly foothill, water seepage and Shiwalik clues, what will be the answer?

Correct answer: Bhabar

The direct answer is C: Bhabar. The Bhabar is a narrow, coarse, pebbly belt along the foothills of the Shiwalik ranges. Its porous pebbles and gravel allow streams descending from the hills to sink or disappear underground. The clues therefore match one another: foothill location, coarse stones and seepage of water identify Bhabar. Option A, Khadar, is newer alluvium on low active floodplains, not a pebbly foothill belt. Option B, Bhangar, is older alluvium on higher plains and often has kankar; it is not mainly identified by streams disappearing into pebbles. Option C is correct because every clue describes Bhabar. Option D, Terai, lies south of Bhabar and is wet and marshy because the underground streams reappear there. Thus Terai is related to the process but is not the pebbly zone where seepage begins. Exam cue: Bhabar makes water disappear; Terai brings it back to the surface.