Which range is named as Trans Himalayas

The Karakoram is commonly grouped within the Trans Himalaya system that lies north of the main Himalayan arc. It hosts K2 and long valley glaciers. Sub Himalayas refers to Siwalik foothills. Hindu Kush forms a separate range to the west. Examiners often prefer this classification. Therefore choose Karakoram for the Trans Himalayas label.