Select the correct answer. Under which condition does a light ray striking a concave mirror reflect off parallel to the principal axis? A. when the incident ray passes from a point anywhere between the center of curvature and the focal point B. when the incident ray passes through the center of curvature C. when the incident ray passes through the focal point D. when the incident ray passes through a point beyond the center of curvature E. when the incident ray passes through a point anywhere between the focal point and the vertex