Which One of the Following Statements Most Accurately Indicates the Basic

Which one of the following statements most accurately indicates the basic motivation for behavior?

A) Individuals are motivated primarily by selfish desires; thus, personal costs and benefits influence their actions.
B) Individuals are motivated primarily by humanitarian concerns; therefore, personal costs and benefits exert little influence on most of their actions.
C) Individuals are motivated by a variety of forces; however, changes in personal benefits and costs influence the choices of both selfish and humanitarian individuals.
D) Individuals are motivated by a variety of forces; however, changes in personal benefits and costs affect behavior only when individuals are motivated by selfishness.