If $$\theta$$ is the angle between the pair of tangents drawn from the point $$\left(0, \frac{7}{2}\right)$$ to the circle $$x^2 + y^2 - 14x + 16y + 88 = 0$$, then $$\tan \theta$$ equals

A

$$\frac{4}{5}$$

B

$$\frac{2}{5}$$

C

$$\frac{3}{4}$$

D

$$\frac{20}{21}$$