The correct option is D
The transistor is a semiconductor electronic device used to deliver an output signal in response to an input signal. It fulfills functions of amplifier, oscillator, switch or rectifier. Currently it is found in virtually all electronic devices for daily use such as radios, televisions, audio and video players, quartz watches, computers, fluorescent lamps, tomographs, cell phones, although almost always within the so-called integrated circuits.
The other objects named do not have transistors.