An Object Moving in the +X Direction Experiences an Acceleration

Multiple Choice

An object moving in the +x direction experiences an acceleration of +2.0 m/s².This means the object

A) travels 2.0 m in every second.
B) is traveling at 2.0 m/s.
C) is decreasing its velocity by 2.0 m/s every second.
D) is increasing its velocity by 2.0 m/s every second.