You're driving a double-deck bus. Why do you need to know if anyone is using the stairs?

Possible Answers:

a. The upper deck is only to be used when the lower deck is full

b. Tickets for the upper deck are more expensive

c. Passengers using the stairs could fall if the bus brakes or swerves

d. No-one under 18 years old may use the stairs

Think you know the answer to this theory test question?

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