A user states that they unplugged their mouse to clean the roller ball, but after plugging it back in the mouse no longer functions. Which of the following is the MOST likely cause of this issue?（）

A. The mouse has a PS/2 connector which is not hot-swappable.
B. The mouse roller ball is now too smooth to gain traction.
C. The mouse was broken before the user unplugged to clean it.
D. The mouse has a USB connector that is not getting enough power.