In pneumatic ABS modulation,what happens to air diverted from the service chambers?

A) re-routed to hold-off circuit
B) re-routed to service reservoirs
C) returned to supply reservoir
D) exhausted to atmosphere

Pneumatic ABS

Anti-lock Braking System (ABS) that uses compressed air to prevent the wheels from locking up during braking, especially in heavy vehicles like trucks and buses.

Service Chambers

Components typically found in air brake systems of large vehicles, used to convert compressed air into mechanical force to apply the brakes.