An archetectural firm has approached you to consult on a new project they are putting together. They have started putting together plans for a 20-storey hotel located in an area that follows IBC 2021. The proposed building has a automatic sprinkler system. Provide them with the following feedback. What occupancy classification is this? What construction types are allowable and which would you recommend? Based on your recommendation, what fire resistance rating is required for the primary structural frame of the building, if any