Explanation
The correct answer is D: Incorrigible.
This word is used to describe a person who is resistant to change and cannot be corrected or reformed. An incorrigible person is often seen as stubborn, unmanageable, or uncontrollable, and they may continue to engage in negative behavior despite efforts to correct or improve it. The term can also be used to describe a habitual offender who shows no remorse or willingness to change their ways.