The correct answer is option 1, "Focusing attention on public issues." The legislature in a democratic country can influence public opinion in several ways. By focusing attention on public issues, they can highlight important matters that require public attention and generate discussions and debates. This can lead to increased awareness and understanding among the public, which in turn can shape their opinions on particular issues. Through various means such as speeches, debates, and media outreach, legislators can play a significant role in setting the agenda and shaping public discourse. However, it is important to note that while the legislature can influence public opinion, it is ultimately up to the individuals to form their own opinions based on the information provided.