Answer:
The correct answer is - A. A computer model.
Step-by-step explanation:
Pilots use flight simulations for their training, airlines heavily depend and rely on the training at computer simulators (fixed base simulators). These simulators are based on Artificial intelligence to stimulate real-like virtual conditions with 3D geographical locations and many other components such as cockpit controls and how to use the cockpit displays to control the airplane.
Thus, the correct answer is - A. A computer model.