Which of the Following Electrical Troubleshooting Routines Is in the Correct

Which of the following electrical troubleshooting routines is in the correct sequence?

A) Study the electrical diagram, confirm the concern, locate and repair the fault, test the repair.
B) Study the electrical diagram, locate and repair the fault, confirm the concern, test the repair.
C) Confirm the concern, study the electrical diagram, test the repair, locate and repair the fault.
D) Confirm the concern, study the electrical diagram, locate and repair the fault, test the repair.