Which of the following is a function of the fuel pump?

The function of the fuel pump is fundamentally to deliver fuel to the engine, making this choice the correct answer. In an internal combustion engine, the fuel pump plays a crucial role in maintaining the proper flow of fuel from the fuel tank to the engine's fuel injection system or carburetor, depending on the engine design. This fuel is then mixed with air to form a combustible mixture that is ignited in the combustion chamber to produce power.

The proper functioning of the fuel pump is essential for engine performance. If the fuel pump fails or does not supply sufficient fuel, the engine may experience poor performance, stalling, or may not start at all. Therefore, the fuel pump is vital for ensuring that the engine has the necessary fuel supply to operate efficiently and reliably.