Correct Option: A

In geology, a nappe is a large sheetlike body of rock that has been moved more than 2 km or 5 km from its original position. Nappes form during continental plate collisions, when folds are sheared so much that they fold back over on themselves and break apart. The Kashmir Valley has been described as a great synclinal (Wadia, 1975), seated on the back of a vast nappe, Kashmir nappe.