Why are Peninsular rivers not as very long and young as Himalayan rivers?

Correct answer: They are linked with old stable plateau land

The direct answer is A: Peninsular rivers are linked with old, stable plateau land. River length, age and character depend partly on the landform through which a river develops. The Peninsular Plateau is very old and comparatively stable. Its rivers have had a long time to develop established valleys, but they generally do not cut through the young, high, actively rising mountain system seen in the Himalayas. Himalayan rivers are often called youthful in their upper courses because they flow through steep relief, cut deep gorges and carry large amounts of water from snow, glaciers and rain. Option A is correct because it gives the basic geological reason. Option B is wrong because Peninsular rivers do not rise in Tibet; some Himalayan rivers do. Option C is wrong because rivers do not form new mountains every year. Option D is wrong because Peninsular rivers are not fed only by glaciers; rainfall is an important source, and many have seasonal flow. The statement does not mean every Peninsular river is short or every Himalayan river is long, but it describes the general textbook comparison. Memory cue: old, stable plateau gives mature, established drainage; young Himalayas give deep, energetic and often longer river systems.