When You Lift a Heavy 5

When you lift a heavy 5.0 kg crate straight up from ground level to a height of 2.0 m above ground level, then you have changed the crate's gravitational potential energy by

A) 98 m²/s².
B) 98 J.
C) an undetermined amount, because it depends on how fast you lifted it.
D) 98 N.
E) 98 kg m/s.