Blue Screen of Elusiveness

One of your clients has been randomly getting a Windows BSOD stop error on their computer. You would like to get more details about this issue, but you never seem to be around when the problem occurs. Which of these would be the best place to get more information about these errors?

A) Control Panel System applet

B) Windows Event Log

C) Windows Performance Manager logs

D) Windows Device Manager

E) Make your client wear a pair of those super-spy glasses that record everything they see