Answer:
To conveys opinions / ideas.
Step-by-step explanation:
One important characteristics of a democratic society is that the government need to be operated through the will of the majority of the people.
As the societies goes larger, the opinions / interests of the people will become more diversified.
So, one of the most efficient think to conveys opinions/ideas on how the government should be run is by engaging in a civil dialogue. In that dialogue, people could promote a certain legislations and make a coherent argument on why that legislation should be made. If that person can convince a lot of people with the argument, there will be a chance that the legislations could be passed by the government representatives.