A broadcast domain includes all devices that receive broadcast frames originating from any device within the domain. A single broadcast domain existing between SWA and SWB is correct if they are on the same VLAN or network segment. Similarly, a single broadcast domain existing between SWA and SWC is correct if they are connected within the same network segment. A collision domain is limited to the network segment where data packets can collide with one another, which is not typically between switches (SWC) and (SWA).