If a room holds more than 50 people, exit doors should swing ________.

Answer

According to standard building and fire safety codes (such as NFPA 101 Life Safety Code), exit doors for rooms or spaces with an occupant load of more than 50 people are required to swing in the direction of egress travel (outward, in the direction of the exit flow). This prevents people from crushing against the door during an emergency evacuation. Therefore, the correct choice is 'With the flow of people exiting the building'.