Incorrect!

You're approaching a zebra crossing. What should you do if pedestrians are waiting to cross?

Give way to older and infirm people only
Slow down and prepare to stop
Correct answer
Use your headlights to indicate they can cross
You selected this answer
Wave at them to cross the road

DVSA theory test explanation

As you approach a zebra crossing, look for pedestrians waiting to cross. Where you can see them, slow down and prepare to stop. Be especially careful of children and older people, who may have difficulty judging when it's safe to cross.