Consider a Spaceship That Moves Toward You at Half the Speed

Multiple Choice

Consider a spaceship that moves toward you at half the speed of light.It fires a probe toward you,relative to itself,at 0.7 the speed of light.Relative to you,the probe approaches at about

A) 70% c.
B) 87% c.
C) 89% c.
D) 92% c.
E) 96% c.