The numerically greatest term in the expansion of $$(1 - 3x)^{10}$$ when $$x = \frac{1}{2}$$ is

A

$$10_{C_6}\left(\frac{3}{2}\right)^6$$

B

$$10_{C_6}\left(\frac{3}{2}\right)^7$$

C

$$10_{C_7}\left(\frac{2}{3}\right)^7$$

D

$$10_{C_7}\left(\frac{3}{2}\right)^5$$