A coil having $$n$$ turns and resistance $$4R\Omega$$. 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

A

$$-\frac{W_2 - W_1}{5Rnt}$$

B

$$-\frac{n(W_2 - W_1)}{5Rt}$$

C

$$-\frac{W_2 - W_1}{Rnt}$$

D

$$-\frac{n(W_2 - W_1)}{Rt}$$