Three Spaceships A,B,and C Are in Motion,as Shown in the Figure.The

Multiple Choice

Three spaceships A,B,and C are in motion,as shown in the figure.The commander on ship B observes ship C approaching with a relative velocity of 0.78c.The commander also observes ship A,advancing in the rear,with a relative velocity of 0.31c.What is the velocity of ship C,relative to an observer on ship A?

A) 0.88c
B) 0.38c
C) 1.4c
D) 0.62c
E) 1.1c