Which of the Following Has Been Used as an Argument

Which of the following has been used as an argument against Kohlberg's theory of the development of moral reasoning?

A) Kohlberg is talking only about an ethic of fairness, and ignores other aspects of moral reasoning.
B) Cross-cultural data fail to support the hypothesized sequence of development.
C) Too few adults reason at the principled level to make it worth talking about.
D) When tested longitudinally, subjects move down as often as they move up in the sequence of reasoning.