Public opinion refers to the views, beliefs, and attitudes of the general public regarding a particular issue or topic. In a democratic system, the government is accountable to the people it governs. By taking into account public opinion, the government can find out what the people think about its activities, policies, and decisions. This enables the government to gauge the level of support or opposition to its actions and to make decisions that are more in line with the wishes of the people. Additionally, public opinion can help the government to identify emerging issues and concerns that need to be addressed, and to communicate its policies and decisions to the public more effectively. Therefore, the answer is that public opinion enables the government to find out what the people think about its activities.