Answer:
My best answer would be, "b. Remove all possible contact points, and test again while ensuring only a single contact point"
This is because usually when the cursor jumps around without reason, it's caused by the user accidentally hitting the mouse touchpad on his or her laptop while typing. ... Similarly, know that just because you have an external mouse attached to your laptop, the built-in mousepad is not automatically disabled.
Brainliest?
