Let $$a_1, a_2, a_3, \ldots$$ be an A.P. with $$a_6 = 2$$. Then, the common difference of this A.P., which maximise the product $$a_1 \cdot a_4 \cdot a_5$$, is:

A

$$\frac{2}{3}$$

B

$$\frac{3}{2}$$

C

$$\frac{6}{5}$$

D

$$\frac{8}{5}$$