A Ray of Light Is Incident on the Mid-Point of a Glass

Multiple Choice

A ray of light is incident on the mid-point of a glass prism surface at an angle of 25.0 $\degree$ with the normal.For the glass,n = 1.55,and the prism apex angle is 30.0 $\degree$ .What is the angle of refraction as the ray enters the air on the far side of the prism?

A) 14.1 $\degree$
B) 22.3 $\degree$
C) 28.4 $\degree$
D) 46.0 $\degree$