Final answer:
All of the sections mentioned, including Exclusive Association, Associate's Authority, and Advertising, can be included in an independent contract agreement. Competing corporations might join together in an association for strength in numbers, the ability to address common issues, and to influence governmental policies.
Step-by-step explanation:
The direct answer to which sections are included in an independent contract agreement is D. All of the above. An independent contract agreement can include a variety of sections, and the specific ones mentioned: Exclusive Association, Associate's Authority, and Advertising, could all potentially be part of such an agreement depending on the nature of the contract and the preferences of the parties involved.
In discussing why several competing corporations might join together in an association, the answer is D. all of the above. Corporations often come together to form an association because they recognize that there is strength in numbers. By doing so, they can address common issues that may affect the entire industry more effectively.
Moreover, collectively, they can have more influence on governmental policies that benefit all members. Associations provide a platform for competitors to collaborate on non-competitive issues and to advocate for the interests of their industry or sector.