CompTIA A+ 220-902 Question F-29

When using an optical mouse connected via USB on a laptop and experiencing strange cursor movement, which of the following is MOST likely to be the cause? (Select TWO).

A. The mouse is failing and should be replaced
B. There is contact with the touchpad
C. The mouse drivers need to updated
D. The laptop is using a capacitive touchscreen
E. The surface is interfering with the optical sensor

Correct Answer: BE