In the decreasing order of the length of the rivers, the correct sequence is :
(a) Brahmaputra - Ganga - Godavari - Narmada
(b) Ganga - Godavari - Brahmaputra - Narmada
(c) Brahmaputra - Narmada - Godavari - Ganga
(d) Ganga - Brahmaputra - Godavari – Narmada