The correct answer is letter B.
Explanation: Cooperative is a form of association between individuals that has the purpose of a common activity, and that is worked to generate equal benefits to all members, the so-called cooperative members.
The basis of the operation of a cooperative is mutual action in cooperation. The investment for all parties is the same and the return as well.
One of the most basic cooperative activities is buying supplies for small producers. For example, a group of several combined producers can negotiate better prices with suppliers than alone by buying in small quantities.