CompTIA A+ 220-902 Question H-96

A technician has been dispatched to a customer site to diagnose an issue where the computer turns off intermittently. Upon arriving at the site, the technician detects a smoke smell coming from the computer. Which of the following is the BEST solution?

A. Power down the system and replace the CPU.
B. Power down the system and replace the power supply.
C. Install an additional case fan for proper ventilation.
D. Remove the side panel for proper ventilation.