A Beam of Light Is Incident at the Polarizing Angle $\circ$

A beam of light is incident at the polarizing angle on a glass plate.If Brewster's angle is 55.4 ^$\circ$ what is the index of refraction of the glass?

A) 1.55
B) 1.60
C) 1.50
D) 1.40
E) 1.45