You can't find fault with C. "Discipline" suggests punishing a wrongdoer, but stresses the effort to bring the person under control. ("The parents need to discipline their unruly children.") "Chastise" may apply to either physical punishment or a verbal reprimand. ("They were chastised for being late.") "Castigate," meanwhile, implies a public criticism. ("The newspaper editorial castigated the mayor.") "Chasten," another synonym, suggests a trial that leaves one humbled. ("The incumbent was chastened by his re-election defeat.") "Correct" implies punishment aimed at reforming the offender. ("Prison should serve to correct the wrongdoer.")