【单选题】

A clogged air filter causes low flow through the equipment cooling supply system. Replacement of the air filter on a regular maintenance schedule is necessary. Release the quick release tabs on the air filter housing cover to get access to the filters.

A、Air filter needs to be replaced on regular maintenance schedule, because it often causes low flow through the equipment cooling supply system. Quickly release the tabs on the air filter housing cover to reach the filters.
B、Low flow through the equipment cooling supply system is caused by a contaminated air filter, therefore regular replacement is necessary, release the quick release tabs on the air filter housing cover to approach to the filters.
C、A blocked air filter which causes low flow through the equipment cooling supply system needs replacement on a regular maintenance schedulE. Release the quick release tabs on the air filter housing cover to reach the filters.