A small ball bearing is released at the top of a long vertical column of glycerin of height 2h. The ball bearing falls through a height h in a time $$t_1$$ and then the remaining height with the terminal velocity in time $$t_2$$. Let $$W_1$$ and $$W_2$$ be the work done against viscous drag over these heights. Therefore,

A

$$t_1 < t_2$$

B

$$t_1 > t_2$$

C

$$W_1 = W_2$$

D

$$W_1 < W_2$$