The ratio of the increase in pressure in rotor blades to total increase in pressure in the stage is called

The ratio of the increase in pressure in rotor blades to total increas

1.	The ratio of the increase in pressure in rotor blades to total increase in pressure in the stage is called
A.	Pressure ratio
B.	Pressure coefficient
C.	Degree of reaction
D.	Slip factor
Answer» D. Slip factor