Correct answer: A. Dissent by itself is not public disorder
Explanation: Dissent means expressing disagreement with a government, policy, or decision. In a democracy, peaceful dissent is normally a legitimate part of public discussion and does not automatically create public disorder. Authorities may regulate an assembly through lawful, necessary, and proportionate measures when there is a genuine safety concern, but fear of disagreement alone is not a sufficient reason to suppress it. Citizens must be able to question those in power.
Therefore, option A is correct. The other options wrongly treat every disagreement as criminal, deny the constitutional freedom of peaceful assembly, or label peaceful action as exploitation. The key distinction is between peaceful dissent, which can strengthen democracy, and violence or serious disruption, which may justify lawful restriction.