The function of positive crankcase ventilation (PCV) system is that it

A)
mixes fuel with air
B)
feeds blow-by gases to the exhaust manifold
C)
returns blow-by gases from the crankcase to the intake system
D)
promotes combustion by creating a swirling movement in the air-fuel mixture

Correct Answer : Option (C) :   returns blow-by gases from the crankcase to the intake system