A bus is offered 400 pounds of one allowed hazmat class and 150 pounds of another allowed class. What should the driver decide under Section 4?

1. Do not carry it because the 550-pound total exceeds the 500-pound total allowed hazmat limit
2. Carry it because neither amount is 500 pounds by itself
3. Carry it if the packages are loaded away from passengers
4. Carry it if riders are told not to touch it