which of the following is used to control the direction of a vex iq robots movement? color sensor touch led…

Brief Explanations:

A gyro sensor measures angular rate and orientation, which helps in controlling the direction of a robot's movement. A color sensor detects colors, a touch LED is for indicating touch - related events, and a smart motor provides power for movement but not direction control in the sense of orientation like a gyro sensor.

Answer:

C. Gyro sensor