Programming a robot by physically moving it through the trajectory you want it to follow is called:

Solution(By Examveda Team)

Continuous-path control involves programming a robot by physically guiding it through the desired trajectory or path. This is typically achieved by manually moving the robot arm or end effector along the intended path while recording the positions.
Option A: Contact sensing control typically involves programming a robot to respond to physical contact with objects or surfaces.
Option C: Robot vision control involves using visual data to guide the movements or actions of a robot.
Option D: Pick-and-place control involves programming a robot to grasp objects from one location and place them in another.
Therefore, the correct choice for programming a robot by physically moving it through the trajectory is Option B: continuous-path control.