Final answer:
The default ports for the left and right motors in LEGO Mindstorms are typically Port B and Port C, which is essential for proper robot control.
Step-by-step explanation:
In LEGO Mindstorms, the default ports for the left and right motors are typically Port B and Port C. This allows programmers to easily control the robot's movement by assigning each motor to one of these ports. When programming your robot, it is important to connect the motors to the correct ports as specified in your project instructions or the Mindstorms software default configuration.