Concept:Pressure groups use various protest and advocacy methods to influence decision-makers, but they do not use formal electoral participation as a direct tool.
Explanation:Pressure groups are organizations that try to influence government policies without seeking political power themselves.
They commonly use boycotts to refuse buying goods or services in order to force change.
They often organize demonstrations or public protests to draw attention to their demands.
They also use strikes, where workers stop working to pressure employers or the government.
However, elections are a formal political process in which candidates contest for public office.
Pressure groups may support or campaign for candidates, but they do not directly use elections as a pressure tactic.
Therefore, among the given options, elections are not a direct tool used by pressure groups to achieve their aims.
Answer:C. Elections