Which of the Following Statements About Cooperation Is True

Which of the following statements about cooperation is true?

A) Competition is superior to cooperation in promoting achievement and productivity.
B) Individuals are said to be cooperating when their efforts are systematically integrated to achieve a collective objective.
C) Cooperation with intergroup competition promotes higher achievement and productivity than cooperation without intergroup competition.
D) Managers should increase the size of work teams if they desire to facilitate cooperation.
E) specialized.