At time t = 0 Switch S is closed in the circuit shown. What is the expression for the current i(t) through the inductor?

A

$$6 - (3 \times e^{-10t})$$

B

$$6 - (3 \times e^{\frac{-10t}{3}})$$

C

$$6 - (3 \times e^{-5t})$$

D

$$6 - (3 \times e^{\frac{-5t}{3}})$$