Answer:
A democracy
Explanation:
Consensus is part of a democracy where regular citizens have power within the government.
Whilst Liberalism is founded on ideas of freedom, equality and liberty. Social Democracy is the best balance of freedom and equality because it promotes social justice in a capitalist economy and a liberal democratic view. Also, communism has, historically, a poor reputation for freedom and equality. For example, China and North Korea are current communist countries and Russia previously was a communist country after the Bolshevik Revolution in 1917.