How Did the Self-Strengthening Policy Change China's Government

How did the self-strengthening policy change China's government?

A) It put new agricultural practices into effect in an attempt to end the devastating famines.
B) It put to death tens of thousands of peasants who had participated in the Taiping Rebellion.
C) It began modernization of flood control on its major river systems.
D) It began to purchase modern weapons from Western countries.
E) It took control of Vietnam, giving the country its first colony.