After an engine inspection, which operational checks should be performed?

• A. Camshaft duration, turbine inlet temperature, oil viscosity, and temperature.
• B. Oil pressure, oil temperature, fuel pressure, magneto check, and power output.
• C. Oil level, air filter condition, exhaust temperature, and vibration level.
• D. Fuel quantity, ignition timing, propeller speed, and hydraulic pressure.

Answer: (B)