Radio signals travel at a rate of 3 × 10^8 meters per second. How many seconds would it take for a radio signal to travel from a satellite to the surface of Earth if the satellite is orbiting at a height of 4.2 × 10^7 meters? (Hint: Time is distance divided by rate.)

A. 1.26 × 10^16 seconds
B. 1.26 × 10^15 seconds
C. 1.4 × 10^1 seconds
D. 1.4 × 10^–1 seconds