This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
1. As societies became large and complex, they needed some agency to gather different views on various issues and to present these to the government.
2. People needed some way to bring various representatives together so that a responsible government could be formed.
3. They needed a mechanism to support or restrain the government, make policies, justify or oppose them. Political parties fulfill these needs that every representative government has. We can say that parties are a necessary condition for a democracy.