As shown in the figur a battery of emf `in` is conneced to an inductor L and resistance R in series . The swith is closed at t =0 . The total charge that flows form the battery between t 0 and `t= t_(c)` (`t_(c)` is the time constant of the circuit )is :

Options

A. `(inR)/(eL^(2))`
B. `(inL)/(R^(2))`
C. `(inL)/(eR^(2))`
D. `(inL)/(R^(2))(1-(1)/(e))`