A car has come into a shop with an engine misfire. A power balance test has been performed with the following results.Cylinders              1       2      3      4RPM Drop          10    150   145   155Technician A says that cylinder 1 may have low compression. Technician B says that cylinders 2-3-4 are not working properly. Who is correct?

A. A only
B. B only
C. Both A and B
D. Neither A nor B


Answer: A

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