Two Mirrors Are Arranged as Shown in the Drawing $\theta$ Determine the Angle

Multiple Choice

Two mirrors are arranged as shown in the drawing. Light is incident from the right on the first mirror at an angle of 70°. The light reflects toward the second mirror and is reflected at angle $\theta$ . Determine the angle $\theta$ .

A) 25°
B) 65°
C) 45°
D) 35°
E) 55°