A coil having n turns and resistance $4 R \Omega$. This combination is moved in time t seconds from a magnetic field $W_1$ weber to $W_2$ weber. The induced current in the circuit is

Question

( A ) $-\frac{(W_2 - W_1)}{5Rt}$
( B ) $-\frac{W_2 - W_1}{Rnt}$
( C ) $-\frac{n(W_2 - W_1)}{Rt}$
( D ) $-\frac{W_2 - W_1}{5Rnt}$