In multistage compression, perfect intercooling means

A.Temperature of air at inlet to subsequent stages is equal to initial temperature
B.Temperature of air at inlet to subsequent stages is less than initial temperature
C.Temperature of air at inlet to subsequent stages should be zero
D.Temperature of inlet to subsequent stages should be equal to the final temperature
E.None of the above

Crankcase dilution is

A.Dilution of fuel in crank case
B.Dilution of lubricating oil in crankcase
C.Dilution of mixture while passing through crankcase in two stroke engines
D.Addition of water in crankcase
E.None of the above