How is corporal punishment legally defined?

The legal definition of corporal punishment is characterized by the concept that it involves a willful act of physical force that results in injury or trauma. This definition highlights that corporal punishment is not just about the application of physical force, but that it must also meet specific criteria, such as being intentional and causing harm, injury, or emotional trauma. This delineation is crucial in legal contexts, as it differentiates between acceptable forms of discipline and those that cross the line into abuse.

The other options do not accurately reflect this legal definition. While temporary discomfort could be a byproduct of corporal punishment, it does not encompass the broader implications of injury or trauma associated with willful acts. Verbal reprimands and physical rewards pertain to different disciplinary methods altogether and do not involve the physical force that defines corporal punishment. Therefore, the specific emphasis on intentionality and the resulting harm makes the chosen answer the correct one in the context of legal definitions.