Final answer:
A. Lidar. Lidar uses infrared light to detect nearby objects, making it a valuable technology in various applications such as self-driving cars.
Step-by-step explanation:
The correct answer is A. Lidar.
Lidar stands for Light Detection and Ranging. It is a remote sensing technology that uses infrared light to detect the distance and other properties of nearby objects. Lidar sensors emit invisible infrared light pulses and measure the time it takes for the light to bounce back after hitting an object. By analyzing the return time and intensity of the light, Lidar can create detailed 3D maps or detect objects in its vicinity.
For example, self-driving cars use Lidar to detect obstacles and navigate safely. By emitting infrared light and analyzing the reflected signals, the car's Lidar system can identify pedestrians, vehicles, and other objects on the road.