Chris and Zarbab are 15. Zarbab's parents are away, and Chris turns up at Zarbab's house with a bottle of vodka taken from his parents' drinks cabinet. Zarbab says that he doesn't want to drink alcohol but Chris tells him that everyone else their age does it.

How many 11–16 year-olds in the UK regularly drink alcohol?

• a 1 in 10
• b2 in 10
• c 5 in 10
• d 8 in 10
• e Almost all