How is occupant load calculated for means of egress design under NFPA 101?

• A. By counting every occupant in the building at peak occupancy only.
• B. By applying the occupancy-specific load factor to the floor area and summing per NFPA 101/IBC tables.
• C. By using the building's occupancy classification alone without area.
• D. By measuring egress corridor length and multiplying by a fixed multiplier.

Answer: (B)