An engineer is experiencing unexpected reboots on a graphics workstation when rendering complex 3-D models. The workstation is configured with a 115V power supply that is rated at 200W and connected to a UPS. The central processing unit contains 16 hyperthreaded cores, and a discrete graphics solution utilizing an 8-pin power connector is installed in a PCI Express x16 slot. Which of the following indicates where the technician should begin troubleshooting?
A. The UPS, as 115V is insufficient for the configuration and should be increased to 220V
B. The power supply, as 200W is insufficient when the GPU is heavily tasked
C. The graphics card, as it is the component that triggers the unexpected reboots
D. The motherboard, as only standard PCI slots should be used for high-end graphics cards, not PCI Express slots