In the given figure, PAB is a secant and PT is a tangent to the circle from P. If PT = 8 cm, PA = 6 cm and AB = x cm, then the value of x is:

A

$$\frac{14}{9}$$

B

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

C

$$\frac{14}{3}$$

D

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