What is the correct sequence of Steps?

A user at a remote location reports a problem that occurs when the Orders; form runs and the user
clicks the invoice button. You are not able to reproduce the problem, so you decide to use remote
debugging.
The steps involved in diagnosing the problem are listed below, but they are ordered incorrectly.
What is the correct sequence of Steps?
1. You set a breakpoint in the When Button-Pressed trigger for the invoice button.
2. The user’s screen goes blank.
3. The user reports the host and port to you.
4. You uses the debugger to step through the code.
5. The user clicks a button that calls DEBUG.ATTACH.
6. You attach to the user’s process.
7. You open the Orders.fmb file from which the running .fmx was generated.
8. The user clicks the invoice button.

A.
5, 3, 6, 7, 1, 8, 2, 4

B.
8, 3, 6, 5, 4, 7, 1, 2

C.
7, 1, 3, 6, 5, 1, 8, 4

D.
3, 6, 5, 7, 8, 1, 2, 4

Explanation:
First we need to attach to the user process.