Concept:Disorderly mob action, vandalism, and obstruction show that normal rules and authority are no longer being respected.
Explanation:The mob gathered, shouted abuses, vandalized property, and blocked vehicles.
These actions show that the people took the law into their own hands.
Such behaviour creates chaos and prevents the government from maintaining public order.
This situation is best described as a breakdown of law and order.
It is not about the importance of a minister or the role of the police.
It also does not directly suggest that stiffer security measures were the only issue.
The main idea is the failure of peaceful and legal control in the community.
Answer:C. breakdown of law and order.