Explanation The number of communication channels in a project is an indicator of the complexity of communication among the stakeholders. It is calculated by using the following formula1: Number of communication channels = N x (N - 1) / 2 Where N = Number of stakeholders In this case, N = 65, so the number of communication channels is: 65 x (65 - 1) / 2 = 2080 Therefore, the correct answer is A. 2080. References: Number of Communication Channels (+ PMP Formula & Calculator)