David Installed a New Set of Drivers for One of His

Multiple Choice

David installed a new set of drivers for one of his hardware components. Since then, the computer has not been able to boot to the OS. What could be the first step in resolving this problem?

A) Rewrite all the lines in the CONFIG.SYS or AUTOEXEC.BAT
B) Check if the hardware device is plugged in properly
C) Reinstall the operating system
D) Reboot to the Last Known Good Configuration