Use the quote below from former United States President John F. Kennedy to answer the following question:

"To fail to meet those obligations now would be disastrous; and, in the long run, more expensive. For widespread poverty and chaos lead to a collapse of existing political and social structures which would inevitably invite the advance of totalitarianism into every weak and unstable area. Thus our own security would be endangered and our prosperity imperiled. A program of assistance to the underdeveloped nations must continue because the Nation's interest and the cause of political freedom require it."—John F. Kennedy, 1961
a. economic prosperity is tied to strong and stable societies
b. totalitarianism is linked to strong and stable societies
c. US aid to developing nations will hinder the advancement of political freedoms
d. The United States must focus on it's own national interests