[单选题]
An object moving in the96ky h k9uz:svop0f3j +x 0a qyssj9 oq/5axis experiences an acceleration of $2.0 \; m/s^2$. This means the object is
A. traveling at 2.0 m in every second.
B. traveling at 2.0 m/s in every second.
C. changing its velocity by 2.0 m/s.
D. increasing its velocity by 2.0 m/s in every second.