You're on a motorway. Your lorry has a maximum authorised mass of more than 7.5 tonnes. What does this sign mean to you?

Possible Answers:

a. You mustn't use the right-hand lane

b. You can only use the right-hand lane

c. You can't leave the motorway at this junction

d. You can use the middle or right-hand lane

Think you know the answer to this theory test question?

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