Which of the Following Was a Tenet of the Influence

Which of the following was a tenet of The Influence of Sea Power upon History, 1660-1783?

A) The United States should remain isolated from overseas' affairs and instead focus on western expansion in its own continent.
B) A powerful navy was essential for protecting national interests and developing global commerce.
C) The United States had invested too much in its navy over the years and should instead focus on the army.
D) The United States should focus on small secret operations as opposed to large battleships and global bases.
E) Pursuing new markets overseas would only bring financial ruin to the United States.