Two discrete time systems have impulse response $$h_1[n] = \delta[n - 3]$$ and $$h_2[n] = \delta[n - 5]$$. If these two systems are cascaded, thenthe overall impulse response of the cascaded system is

A

$$\delta[n - 8]$$

B

$$\delta[n - 3] + \delta[n - 5]$$

C

$$\delta[n - 1] * \delta[n - 2]$$

D

$$\delta[n - 2]$$