You obtained your class A2 licence one year ago and you now obtain a class B licence — what will be the maximum permitted blood alcohol level?

A)0.3 grams per litre in blood, for two years.
B)A level not exceeding 0.5 grams per litre in blood.
C)0.3 grams per litre in blood, for one year.Correct
When you hold one licence and obtain another, seniority is counted from the date the first licence was obtained in order to calculate the two years, so for one more year the permitted blood alcohol level will be 0.3 grams per litre and 0.15 milligrams per litre in exhaled air.