The first thing you should do when starting to back up is to

Question

Responses

find a target.
find a target. - incorrect

step on the brake.
step on the brake. - not selected, this is the correct answer

turn on your hazard lights.
turn on your hazard lights. - no response given

glance over your left shoulder.
glance over your left shoulder. - no response given
Score

Answer 1

It seems you are looking for clarification on the correct answer when starting to back up a vehicle. Based on the information you've provided, the correct answer is "step on the brake."

When beginning to back up a vehicle, ensuring that you have control of the vehicle is paramount, and stepping on the brake is indeed a crucial first step.

If you have any further questions or need additional clarification, feel free to ask!