On the Planet Jupiter, a Dropped Object Picks Up a Speed

Multiple Choice

On the planet Jupiter, a dropped object picks up a speed of 20 m/sec in one second. How fast will it be going at the end of 3 seconds of fall, neglecting "air" resistance on Jupiter?

A) 20 m/sec
B) 80 m/sec
C) 40 m/sec
D) 60 m/sec
E) 180 m/sec