Incorrect!

You're driving on the motorway. What should you do if luggage falls from your vehicle?

Stop at the next emergency telephone and report the incident
Correct answer
Stop on the motorway and switch on hazard warning lights while you pick it up
Walk back up the motorway to pick it up
You selected this answer
Pull up on the hard shoulder and wave traffic down

DVSA theory test explanation

If any object falls onto the motorway carriageway from your vehicle, pull onto the hard shoulder near an emergency telephone and call for assistance. Do not stop on the carriageway or attempt to retrieve anything.