Every morning at the bus stop, carlos encounters an old woman begging for change. she is clearly hungry and alone. because carlos feels very bad for this woman and can "feel her pain," he makes a point of giving her some change each morning that he sees her. which theoretical approach best explains carlos's behavior? social-exchange theory kin selection the empathy-altruism hypothesis the norm of reciprocity

Francine, a college freshman, has agreed to participate in a psychology research study. before she begins her participation, she reads a statement written by the researcher explaining the purpose of the research and the potential risks of participation. it also explains that francine is free to withdraw from the research at any time. in providing francine with this statement, the researcher has followed the ethical guidelines of for participants.