When no.1 piston of a four cylinder in line four stroke engine is performing the power stroke, no.4 piston is on the stroke called _______

When no.1 piston of a four cylinder in line four stroke engine is per

1.	When no.1 piston of a four cylinder in line four stroke engine is performing the power stroke, no.4 piston is on the stroke called _______
A.	Suction
B.	Compression
C.	Power
D.	Exhaust
Answer» B. Compression