*$_The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is?

Pressure drop across the valves

*$_The reason for volumetric efficiency of reciprocating compressor be

1.	*$_The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is?
A.	Pressure drop across the valves
B.	Superheating in compressor
C.	Clearance volume and leakages
D.	All of these
Answer» E.