Technician A says the American Petroleum Institute has established an oil viscosity classification system. Technician B says thick viscosity oils receive high rating numbers. Who is correct?
A) A only
B) B only
C) both A and B
D) neither A nor B

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The Answer of Technician A says the American Petroleum Institute has established an oil viscosity classification system. Technician B says thick viscosity oils receive high rating numbers. Who is correct?
A) A only
B) B only
C) both A and B
D) neither A nor B

Technician a Says the American Petroleum Institute Has Established an Oil