The cyclic process for 1 mole of an ideal gas is shown in the V-T diagram. The work done in AB, BC and CA respectively is

A. `0,RT_(1)Ln((V_(1))/(V_(2))),R(T_(1)-T_(2))`

B. `R,(T_(1)-T_(2))R,RT_(1)In(V_(1)/(V_(2)))`

C. `0,RT_(2)ln((V_(2))/(V_(1))),(RT_(1))/(V_(1))(V_(1)-V_(2))`

D. `0,RT_(2)ln(V_(1))/(V_(2)),R(T_(1)-T_(2))`