Which of the Following Statements Is True

Multiple Choice

Which of the following statements is true?

A) Humans are the only species that recognize violations of distributive justice.
B) Even primates react negatively when they are overbenefitted by positive inequity.
C) Some primates,such as capuchins,respond negatively when they are "paid" less than others for the same amount of work.
D) Except for humans,primates suffer from "reciprocity blindness": they cannot distinguish between equitable and inequitable reward distributions.
E) Only humans display free-riding.