Which term refers to a team that consists of all people in the selling organization who participate in a selling opportunity?

The correct term that refers to a team made up of all individuals in the selling organization who are involved in a selling opportunity is "selling center." This concept embodies a collaborative approach to sales, where various roles and expertise from different departments come together to capitalize on a business opportunity.

In a selling center, members from sales, marketing, customer support, and product development, among others, contribute their insights and skills. This collective effort can enhance the effectiveness of the selling process, as it leverages diverse perspectives and knowledge to meet customer needs more comprehensively.

The other terms, while related to sales processes, do not capture the same inclusive and cooperative spirit as a selling center. A sales team generally refers to a more defined group directly involved in sales activities, which may not include support roles from other functions. Sales force emphasizes the entire group of salespeople but may not account for others in the organization involved in specific sales situations. Customer interaction group might imply a focus on direct engagement with customers but does not necessarily encompass all participants in the selling process. Therefore, "selling center" most accurately describes a collaborative structure that includes all contributions to a specific selling opportunity.