Incorrect!

You're driving your car. When may you use a hand-held mobile phone?

When you're receiving a call
When you've parked safely
Correct answer
When you're driving at less than 30 mph
You selected this answer
When your car has automatic transmission

DVSA theory test explanation

It's illegal to use a hand-held mobile phone while you're driving, except in a genuine emergency. Even using a hands-free kit can distract your attention. Park in a safe and convenient place before receiving or making a call or using text messaging. Then you'll also be free to take notes or refer to papers.