The correct answer is c. Track & transfer data to processor.
The primary function of a sensor is to detect and measure physical parameters or environmental conditions and then convert this information into electrical signals or data that can be processed by a computer or microcontroller. Sensors do not typically perform actions like separating physical parameters, activating responses, or moving robotic arms. Instead, they provide data to a processor, which can then make decisions or trigger actions based on the sensor information.
