The industry standard method used to reverse the rotation of a DC motor is to use a reversing starter to change the current flow direction through the ___ winding.

Using a reversing starter to change the current flow direction is a common method to reverse the rotation of a DC motor. By changing the direction of the current in the armature winding, the magnetic field produced by the armature can be altered, resulting in a reversal of the motor's rotation.

In a DC motor, the armature is the component that rotates within the magnetic field produced by the field winding. When the current direction in the armature changes, the interaction between the armature and the magnetic field also changes, thus switching the clockwise rotation to counterclockwise, or vice versa.

This method is effective because it directly influences the armature's magnetic field, allowing for precise control of the motor’s operation. Additionally, reversing the field winding can also reverse the motor’s direction, but this typically requires more complex circuitry and is less common in straightforward applications where the armature direction is altered.

Therefore, the correct answer highlights the vital role of the armature winding in achieving motor rotation reversal through current flow direction change.