Answer:
A. What should I do if the cables are not secure?
Step-by-step explanation:
Option A is the best question that will help a reader complete this procedure for the first time.
This is true because when following the procedural steps, it is not a guaranteed fact that all the cables will be secured. So, peradventure the reader is faced with the issues of unsecured cables, asking that question will help the reader understand how to pass that hurdle when it occurs.
So, it will enable the reader to complete the procedure for the first time.