All of the Following Statements About the Hand Valves in an Air

All of the following statements about the hand valves in an air conditioning gauge manifold are true,EXCEPT:

A) When both hand valves are closed, both the low- and high-side hose ports are connected only to the low- and high-side gauges.

B) If either hand valve is cracked open and the center hose is opened, refrigerant pressure will equalize across the system.

C) The gauges show respective system pressures when the manifold hand valves are closed.

D) If both manifold hand valves are cracked, the pressures will equalize in the manifold and neither of the gauges will accurately indicate system pressure.