If $$\frac{21 \cos A + 3 \sin A}{3 \cos A + 4 \sin A} = 2$$, then find the value of $$\cot A$$

A

$$\frac{9}{11}$$

B

$$\frac{11}{9}$$

C

$$\frac{1}{3}$$

D

$$\frac{11}{10}$$