Which of the Following Is the Clearest Type of Evidence

Which of the following is the clearest type of evidence favoring Lawrence Kohlberg's claims about the sequence of moral development?

A) The use of all of Kohlberg's stages of moral reasoning increases with age.
B) During adolescence,moral reasoning tends to become more focused on self-interest and rewards than on the expectations of others.
C) Children sometimes skip a stage,but they do not skip a moral level.
D) Stage 4 reasoning does not appear in children but occurs in a majority of adults.