Explanation:
The most popular method employed by pressure groups is lobbying. Lobbying involves attempting to influence the decisions and policies of government officials, legislators and other decision-makers through direct communication, persuasion and the provision of information. It is a peaceful and legal method that pressure groups use to advance their interests and to influence public policy. While strikes, boycotts and electioneering are also used by some pressure groups, lobbying is the most common and widely used method.