What is the name of the disorder characterized by an unusual lack of remorse, empathy, or regard for normal social rules and conventions?

a. histrionic personality disorder

b. avoidant personality disorder

c. antisocial personality disorder

d. borderline personality disorder?

d) borderline personality disorder

Explanation:

This is obviously a personality disorder, so the question now is how serious it is. Many people can function without empathy, because they still have control of their reason and rational brain. In this right, this personality disorder is only borderline, as the patient can still function.

classical republicanism, also known as civic humanism, is a form of republicanism  developed in the renaissance inspired by the governmental forms and writings of  classical  antiquity, especially such  classical  writers as aristotle, polybius, and cicero.