Answer:
Option: C. He considered the opening of a canal essential to U.S. economic interests.
Explanation:
President Theodore Roosevelt uses Big Stick diplomacy in Panama because he considered the location to be useful for the U.S. economy. The United States chose to build the Panama canal over Central America to join the Pacific Ocean and the Atlantic Ocean. Theodore Roosevelt decides to build it to make America stronger in navy power as well as to promote trade. Panama chosen to build the canal because the place was likely to be the thinnest landmass compare to the other areas.