Velocity Addition: the Captain of Spaceship a Observes Enemy Spaceship

Multiple Choice

Velocity addition: The captain of spaceship A observes enemy spaceship E escaping with a relative velocity of 0.48c, as shown in the figure. A missile M is fired from ship A, with a velocity of 0.72c relative to ship A. What is the relative velocity of approach of missile M, observed by the crew on ship E?

A) 0.37c
B) 0.24c
C) 0.34c
D) 0.30c
E) 0.27c