Based on: Kinematic Graphing Interactive

The two labeled lines on this velocity$-$time graph represents the motion of objects A and B $.$ How is the motion of object A different than the motion of object $B?$

A$.$ Object A is speeding up $($getting faster$)$ and object B is slowing down $($getting slower$).$

B$.$ Object $A$ is slowing down $($getting slower$)$ and object B is speeding up $($getting faster$).$

C$.$ Object $A$ is moving in the $+$ direction and Object $B$ is moving in the $-$ direction.

D$.$ Object $A$ is moving in the $-$ direction and Object $B$ is moving in the $+$ direction.