To Investigate the Nature of Moral Thought,Lawrence Kohlberg Presented Children

To investigate the nature of moral thought,Lawrence Kohlberg presented children with a story in which a character named Heinz faces a moral dilemma: the only way to save his mother's life is to steal an experimental drug he cannot buy.When Ellie is read the story and asked whether Heinz should have stolen the drug,she states,"No,it is against the law to steal.The husband should find another way to get the drug." Ellie is in the _______ stage of moral development.

A) mutual interpersonal expectations,relationships,and interpersonal conformity
B) individualism,instrumental purpose,and exchange
C) social systems morality
D) universal ethical principles