The fly-by-wire system is used in

Explanation

The answer is (b) Airline system.Here's why the other options are incorrect:(a) Twisted cable: Twisted cable is a type of wire that is used to transmit data signals. It is not used in fly-by-wire systems.(c) Cable in air: This option is too vague. Cables can be used in many different applications, including fly-by-wire systems. However, the key point of a fly-by-wire system is that it uses electrical signals to control the aircraft, rather than physical cables.(d) Farming: Fly-by-wire systems are not typically used in farming applications.Fly-by-wire systems are used in airplanes to replace mechanical flight controls with an electronic interface. The pilot's movements of the flight controls are converted to electronic signals that are transmitted by wires to flight control computers. These computers then determine how to move the control surfaces (such as the ailerons, elevators, and rudder) to achieve the desired outcome. Fly-by-wire systems offer a number of advantages over mechanical flight controls, including improved maneuverability, stability, and safety