When a user is typing on a laptop the cursor sometimes moves
题目内容(请给出正确答案)
单选题
When a user is typing on a laptop the cursor sometimes moves on its own. Which of the following is MOST likely the cause？（）
A
The keyboard driver needs to be updated.
B
There are conflicting serial ports.
C
The mouse driver needs to be updated.
D
The user is brushing the touch pad while typing.
