A technician has built a custom workstation for an end user. The end user reports that the workstation ran for a few minutes and then crashed. When the user subsequently boots the workstation, it crashes much more quickly. Which of the following did the technician forget to do when building the workstation? 

Answer options:

A. Apply thermal paste.
B. Connect the case fans.
C. Configure integrated GPU.
D. Overclock the CPU.

B