Which one of the following does not characterise the Himalayas?
(a) Various parallel ranges of the Himalayas form a convex arc
(b) There exist syntaxial bends at both the terminals of the Himalayas
(c) Indus, Sutlej and Brahmaputra rivers are examples of antecedent drainage
(d) The Himalayas are wider in the east than in the west
