AB and AC are tangents to a circle with centre O from an extemal point A. The tangents AB and AC touch the cirele at B and C, respectively, such that $$\angle BAC = 118^{0}$$. Find the measure of $$\angle OCB$$.

A

$$59^{0}$$

B

$$62^{0}$$

C

$$60^{0}$$

D

$$54^{0}$$