Micah prefers to use an external USB mouse on his laptop computer. However, while he is typing, he can see the mouse cursor moving erratically on the screen. This symptom continues even when the external mouse is disconnected from the USB port. Which of the following would be the best step in attempting to resolve this erratic cursor movement while allowing Micah the usability of the external mouse and touchpad?
a. Turn off the touch pad using the appropriate Fn key combination.
b. Update the drivers for the USB-connected external mouse.
c. Remove and reseat the USB connection for the external mouse.
d. Remove the keyboard and disconnect the ZIF connection for the touch pad.