What does the phrase centralized government mean in the context of the sentence below?
"For example, Confucius wished to dismantle the power of the three ruling families of his era and create a centralized government instead."
A. A free democracy where the people have the power to vote on important issues.
B. A religion-based government where each religion operates independently.
C. A dictatorship where the leader has absolute power.
D. A government that holds power over the whole country.