Correct option is C
Proximity sensors are used to detect the presence of nearby objects without making physical contact. They are commonly used to measure the
distance to an object or to detect its presence when it enters a specified range. These sensors are widely used in industrial and automation applications, where contactless detection is necessary.
Type of proximity sensors:-
(i) Inductive sensor
(ii) Capacitive sensor
(iii) Ultrasonic sensor
(iv) Photoelectric sensor
(v) Magnetic sensor
