CompTIA A+ Core 2 Question D-6

The technician is dispatched to look at a users laptop. The user reports the system shuts down after 30 minutes of field use. The technician notices the battery is not fully charging. Which of the following should the technician perform to resolve this?

A. Remove the battery and connect it to a commercial battery charger.
B. Discharge the battery using a static mat.
C. Change the power setting on the laptop to use less power.
D. Replace the battery.