What Is China's Rationale for Constructing the Massive Three Gorges

What is China's rationale for constructing the massive Three Gorges Dam project?

A) After several nuclear accidents, the Chinese government would like to reduce their reliance on nuclear power.
B) China has embarked on a policy of monumentalism, attempting to prove that their public works projects can out-scale any others in the world.
C) China's goal is to make a large reservoir to attract international recreational boaters in the region.
D) China is trying to reduce its dependence on coal as a power source, which is causing widespread air pollution in the country.
E) China wants to create a reservoir for irrigation purposes.