Does that mean a dedicated VAV box hooked with any one of the following meets the requirement:

1. Thermostat control
2. Occupancy sensor
3. CO2 sensor

If the answer for option 1 or 2 is yes, then how is it going to modulate HVAC system as per space demand ? because thermostat only senses the temperature and occupancy sensor will only shut off/on the VAV and pump in fresh air as designed. However it will not help in pumping more fresh air if the occupancy increases (I assume that is what the space demand is)

I hope my interpretation is correct ?