The internal surface of a semi-cylinder shown in the diagram is a mirror. A narrow beam of light propagating in a plane perpendicular to the axis of the semi-cylinder hits the upper edge at point I, at an angle of 65° to the line IC. Point C in the figure is located on the axis of the semi-cylinder. After how many reflections will this ray leave the semi-cylinder?
[Figure: Semi-cylinder with mirror surface, showing point I at upper edge and point C on axis]
A. 1
B. 2
C. 3
D. 4