Mission Control Sends a Brief Wake-Up Call to Astronauts in a Distant

Multiple Choice

Mission Control sends a brief wake-up call to astronauts in a distant spaceship.Five seconds after the call is sent,Mission Control hears the waking groans of the astronauts.How far away (at most) from Earth is the spaceship?

A) 7.5 $\times$ 10⁸ m
B) 15 $\times$ 10⁸ m
C) 30 $\times$ 10⁸ m
D) 45 $\times$ 10⁸ m
E) The spaceship is on the moon.