Signal from a remote control to the device operated by it, travels with the speed of:

Explanation

The correct answer is that the signal from a remote control travels at the speed of light. This is because remote controls typically use infrared radiation, which is a form of light. Infrared radiation is part of the electromagnetic spectrum and travels at the same speed as light, approximately 299,792 kilometers per second in a vacuum.Sound and ultrasonic waves travel much slower than light, at about 340 meters per second in air. Supersonic refers to speeds faster than sound but not approaching the speed of light. Hence, these options are incorrect for describing how remote control signals travel.