Which of the following represents a common fuel used in aircraft?

Jet A is a common fuel used in aircraft, particularly in commercial and military aviation. It is a type of kerosene-based fuel that is designed to meet specific performance standards for jet engines. Jet A has a high flash point, making it safer for handling and storage compared to other fuels, and it is optimized for efficient combustion at high altitudes, which is crucial for aircraft performance.

While kerosene is closely related to Jet A, it is important to note that Jet A includes additional refining processes and additives that enhance its performance as aviation fuel. Other options, such as propane and natural gas, are not typically used in traditional jet engines and are more common for different types of engines or heating applications. Therefore, recognizing Jet A as the appropriate choice emphasizes its significance and usage in aviation over other fuels.