() are individuals and organizations that are actively involved in the project, or whose interests may be affected as a result of project execution or project completion; they may also exert influence over the project and its results.
C
该题的关键词为"individuals and organizations、 be affected、 exertinfluence",其语句结构为" (主语)are(谓语)individuals and organizations",含义为"什么是个人或组织",选项A和B容易排除,选项D虽然也受项目影响,也可以施加影响,但其不表示为组织形式,因而 也可以排除。实际上,这句话正是project stakeholders(项目干系人)的定义,所以选择C。