An 8-cylinder engine has 1,500 power strokes per minute, a bore of 3.555 inches, a stroke of 3 5/16 inches, and average pressure of 100 pounds per square inch. Find, to the nearest tenth, the horsepower of the engine.

A. 12.1
B. 12.3
C. 12.5
D. 12.7


Answer: C

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