Which organization type is likely to have an organic structure and operate on a cooperative model?

The correct choice is a self-help organization because it typically embodies an organic structure that fosters collaboration and adaptability among its members. An organic structure is characterized by flexibility, decentralization, and the ability to respond quickly to changes in the environment. In self-help organizations, members often work together cooperatively to solve problems or provide support, reflecting informal relationships and a shared sense of purpose.

In contrast, large corporations generally lean towards a more hierarchical and bureaucratic structure, emphasizing formal roles and procedures. Government agencies frequently operate within strict regulatory frameworks and established protocols, leading to a more rigid structure. Private foundations, while they may have collaborative elements, usually function with a defined governance structure that can limit the organic, cooperative nature found in self-help organizations. Therefore, the cooperative model of self-help organizations aligns closely with the principles of an organic structure, making it the correct answer.