Pick up the wrong statement?

I.C. Engines 17/10/2021

A. 2-stroke engine can run in any direction
B. In 4-stroke engine, a power stroke is obtained in 4-strokes
C. thermal efficiency of 4-stroke engine is more due to positive scavenging
D. petrol engines work on otto cycle
E. petrol engines occupy more space than diesel engines for same power output

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