The Humiliating Defeats of the Prussian Armies to the French

The humiliating defeats of the Prussian armies to the French caused the King of Prussia to

A) ally with Russia in an effort to gain control of Italy.
B) give up on his efforts to improve the Prussian army.
C) use the army's remaining resources to attack Russia instead of France.
D) adopt a number of reforms such as more egalitarian taxes.
E) successfully resist all reforms inspired by the French Revolution.