Company ABC leases two buildings (building A and building B) in a large office park. The office park has a conduit system that allows physical media to run between buildings. The distance (via the conduit system) between building A and building B is 1 km. Company ABC will use the Class B address of 172.16.0.0/16 for its sites. You should subnet this classful network not only to support the two buildings (one subnet per building), but to allow as many as five total sites in the future, as Company ABC continues to grow. Company ABC needs to connect to the Internet, supporting a speed of at least 30 Mbps, and this connection should come into building A. Cost is a primary design consideration, while performance is a secondary design consideration. Each building contains various Wi-Fi client devices (for example, smartphones, tablets, and laptops). Building A has 200 hosts and three floors, each of which can be serviced with a single WAP, while building B has 100 hosts and one floor which can be serviced by a single WAP.