During the overall inspection of the engine, what fluids must be checked for leaks?

The correct answer highlights the importance of checking for leaks in multiple critical fluids during the engine inspection. Fluids that should be checked include fuel, oil, coolant, and power steering fluid, as these are essential for the proper functioning of the vehicle.

Fuel is vital for engine operation, and any leaks can pose serious safety hazards, including the risk of fire. Oil is crucial for lubricating engine components, preventing overheating and wear. Checking for oil leaks is essential as they can lead to engine damage over time. Coolant helps regulate engine temperature, and leaks can result in overheating, which can severely damage the engine. Lastly, power steering fluid is necessary for the steering system to function properly, and leaks can lead to difficulty in steering, compromising safety.

This comprehensive approach to checking these specific fluids ensures the vehicle's reliability and safety, making it critical to include all these fluids in the inspection process. Other options fall short as they exclude key fluids that are vital for the engine's operation and overall vehicle safety.