Answer:
Do you know what x is? You cannot solve this unless you know x.
I believe it would be government intervention as well.
I would say A would the best possible answer
A: This was actually part of my drivers test. If you think about the role police officers and fire fighters play during emergencies sometimes they have to redirect the flow of traffic or control crowds. Sometimes an officer may be directing traffic. It's important to listen and do as told in situations like crowds.
