An Architect Needs to Plan an 802

An architect needs to plan an 802.11ac wireless upgrade for a university building. What is one reason that it is important for the architect to identify auditoriums?

A) Auditoriums typically require a high-density AP design for RF coverage.
B) Users in Auditoriums often have Bluetooth devices, which can be a source of interface in the 5 GHz band.
C) Auditoriums typically require the use of 80 MHz channels to meet bandwidth requirements.
D) Auditoriums often require the use of DFS channels for sufficient 20 MHz channels.