The correct option is C 3
In the North-South extent, there are three parallel ranges. The Greater Himalayas are northernmost section of the Himalayan mountain ranges. The mountain range which runs parallel between the Outer Himalayas in the south and the Great Himalayas in the north is classified as the Middle Himalayas. The Siwalik Hills are a mountain range of the outer Himalayas that stretches from the Indus River to the Brahmaputra River.