The 4 steps are
1 Increase toatal airflow supply to occupied space if possible.
2 Ensure exhaust fans in restroom faciltiates are functional and operating at full capacity when the building is occupied.
3 Consider running the HVAC system on maxium outside airflow 2hrs before and after space occupied.
4 Consider using natural ventlating opening windows if possible and safe to do.
Answer:
A. protection of civil liberties and civil rights
