Two springs have their force constant as k1 and k2 (k1 > k2 ). When they are stretched by the same force up to equilibrium -
(A) No work is done by this force in case of both the springs
(B) Equal work is done by this force in case of both the springs
(C) More work is done by this force in case of second spring
(D) More work is done by this force in case of first spring