Which of the following is an example of the third...

Câu hỏi: Which of the following is an example of the third form of cooperation as it is defined in the fourth paragraph?

A. Students form a study group so that all of them can improve their grades.

B. Members of a farming community share work and the food that they grow.

C. Two rival political parties temporarily work together to defeat a third party.

D. A new business attempts to take customers away from an established company.