The Mountain City Historical Museum is a small museum located in Mountain City, Wyoming. The organization hosts exhibits and activities that highlight the region's unique history over the last several years. Rebecca is the newly hired public relations specialist for the museum. It is her job to promote exhibits and activities to the general public on a very small operating budget. Answer the following question based on the scenario described above. Rebecca has just approved a 30-second public service announcement that will be aired on the radio next week to promote a new exhibit. The communication channel for this message is: a. Rebecca herself b. Mountain City Historical Museum c. The radio d. Static noise e. Feedback received from listeners.