What minimum age is required to obtain Licence Class 2?

Answer: B — 18

The minimum age required to obtain Licence Class 2 is 18 years old as per most state laws and regulations. Choosing option A would be incorrect as 16 is the minimum age required for a driver's license in some states, but not for Licence Class 2 which is typically reserved for heavy vehicles. Option C would also be incorrect as 15 is not the legal driving age in any state. Option D would be incorrect as while 21 may be the legal drinking age in some countries, it is not relevant to obtaining Licence Class 2.