The correct answer is B. MoveAbsj.
Analysis: In the motion instructions of industrial robots, MoveJ means that the end effector moves to the target point at a small speed, which is suitable for long-distance and smoother scenarios; MoveL means that the end effector moves to the target point at the fastest speed, which is suitable for short-distance and precise scenarios; MoveC means that the end effector moves to the target point at a certain speed and acceleration, which is suitable for scenarios that require continuous movement and precise control. MoveAbsj indicates that the robot moves to the target point at the current speed (no more than plus or minus 100%), which is suitable for scenarios that need to reach the target point quickly. Therefore, option B is the correct answer.