To Say That an Object Is Being Accelerated, Means That

To say that an object is being accelerated, means that

A) it is at rest,
B) it is moving,
C) it is either at a state of rest or a state of constant velocity,
D) its state of motion is changing,
And we define acceleration to be
E) a change in speed.
F) a change in velocity.
G) the rate at which speed changes.
H) the rate at which velocity changes.