A Light Ray, Traveling Obliquely to a Concave Mirror's Axis

Multiple Choice

A light ray, traveling obliquely to a concave mirror's axis, crosses the axis at the mirror's center of curvature before striking the mirror's surface. After reflection, this ray

A) travels parallel to the mirror's axis.
B) travels at right angles to the mirror's axis.
C) passes through the mirror's center of curvature.
D) passes through the mirror's focal point.
E) passes through the axis midway between the mirror's focal point and center of curvature.