Which of the following roles and attributes do NOT describe the core team members on a project? a. Core team members join the project on a temporary basis to perform specific project activities as necessary. b. Core team members are the small group of people who are usually on the project from start to finish. c. Core team members often make project decisions jointly with the project manager. d. Core team members may supervise the work of subject matter experts who are brought in on an as-needed basis.