Technician a Says That the Most Common Type of Coolant

Multiple Choice

Technician A says that the most common type of coolant is a 50/50 mixture of antifreeze and water. Technician B says that, depending on its intended use, engine coolant can be a combination of any mixture of water and/or other fluids. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B