AB is a diameter of a circle with centre O. The tangent at a point C on the circle and AB. when produced, meet at the point P. If $$\angle APC = 38^{\circ}$$, when what is the measure of $$\angle$$ PCB?

A

$$23^{\circ}$$

B

$$26^{\circ}$$

C

$$29^{\circ}$$

D

$$19^{\circ}$$