The maximum blood alcohol level for drivers of vehicles transporting dangerous goods...

The maximum blood alcohol level for drivers of vehicles transporting dangerous goods...
A)is 0.3 milligrams per litre of exhaled air.
B)depends on the maximum authorised mass of the vehicle used for the transport.
C)is 0.15 milligrams per litre of exhaled air.Correct
The maximum permitted blood alcohol level for professional drivers, including those transporting dangerous goods, is 0.15 milligrams per litre of exhaled air or 0.30 grams per litre of blood.