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 23.4° with the normal.For the glass,n = 1.60,and the prism apex angle is 51.8°.What is the angle of incidence at the glass-to-air surface on the side opposite where the ray exits the prism?

A) 39.5°
B) 14.4°
C) 37.4°
D) 28.4°
E) 42.7°