Which is and example of an achievement that developed during the golden age of the Gupta empire

Which fact would this be, and how might you verify the truth?

European imperialism in the 19th century was largely motivated by a desire to: o a. assert power over other parts of the world. b. end the racist policies practiced in many foreign countries. o c. defend europe from aggressive foreign armies. d. relocate ethnic and religious minorities within national borders.

How was george washington able to defeat the british in the battle of trenton and princeton