Which utility can test video?

You’re troubleshooting a computer, but you’re not sure if the problem you are seeing is related to the monitor or the operating system. What Windows utility can perform a series of video output tests?

A) regedit

B) dxdiag

C) msinfo32

D) msconfig

E) You don’t want to touch your tongue to the end of the monitor plug. Don’t ask me how I know this.