When the hand wheels on the gauge manifold are turned counterclockwise:
A) Refrigerant flow between the outer hoses and the center hose is shut off.
B) The pressure in the hoses is allowed to travel up to the gauges for a reading.
C) Refrigerant can flow between the outer hoses and the center hose.
D) The pressure in the hoses is shut off from the gauges and no reading can be made.
C
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