Step 1: Understanding the concept.
A government based on the will and opinion of the people is known as a democracy. In democracy, people elect their representatives through voting.
Step 2: Analyzing the options.
(A) Monarchy: Rule by a king/queen, not based on public opinion.
(B) Dictatorship: Rule by one person with absolute power, not based on public opinion.
(C) Democracy: Correct — It is based on the opinion and choice of the people.
(D) None of these: Incorrect, since democracy fits the definition.
Step 3: Conclusion.
The correct answer is (C) Democracy, as it is a government based on the opinion of the people.