CompTIA A+ Core 2 Question C-1

Peter, a technician, built a new computer for a customer. The computer has been setup with the appropriate operating system, but when Peter boots the PC after configuration, he receives an invalid boot disk message. Which of the following tools should he use to fix the issue?

A. Safe Mode with command prompt
B. Restore from a prior recovery point
C. MSCONFIG to disable startup programs
D. BIOS and change the boot order

Correct Answer: D