As a high-speed spaceship flies past you at one-half the speed of light, a strobe lamp fires at the center of a room aboard the spaceship. As measured by you, the light from the strobe
A. reaches point A before it reaches point B.
B. reaches point B before it reaches point A.
C. reaches points A and B simultaneously.
D. never reaches point A.
E. Not enough information is given to decide.