Final answer:
Holly's statement about discussing the donors and performers is an example of a procedural contribution to the discussion, as it helps organize the discussion's agenda.
Step-by-step explanation:
When Holly says, "Let's discuss the donors to the benefit concert and then discuss who will be performing," she is making a procedural contribution to the discussion. A procedural contribution helps to organize the discussion and sets the agenda for what will be talked about and in what order. Other types of contributions, such as task, climate, egocentric, and dynamic, serve different purposes in a group discussion. A task contribution would be focusing on the work that needs to be done, climate would address the social and emotional tone, egocentric would focus on individual needs or desires, and dynamic would involve managing the flow and energy of the discussion.