Public opinion is crystallized through all the following except

Public opinion is the collective views of individuals in a society on a particular issue or matter of public interest. It can be crystallized or formed through various means, including opinion polls, referenda, plebiscites, and strikes. These methods allow individuals to express their opinions and preferences on various issues. However, military coups are not a means by which public opinion is crystallized. Military coups refer to the sudden overthrow of a government by the military, usually without the support of the public. In this situation, the military takes control of the government and may impose its own views and policies, often without the input or agreement of the public. Therefore, military coups do not reflect the crystallization of public opinion.