If you switch on the air conditioning system while driving, fuel consumption...

If you switch on the air conditioning system while driving, fuel consumption...
A)decreases if temperatures are low.
B)does not change.
C)increases.Correct
The air conditioning system needs energy from the engine to operate. When switched on, the engine is subjected to extra effort, which means it needs to burn more fuel to maintain performance. For this reason, consumption always increases when using it.