In his inaugural address, Kennedy uses the phrase "Let both sides..." to begin points of emphasis. Based on the context of the speech, who are the two sides that Kennedy is referencing?
A countries that have the atomic bomb and countries that do not have any nuclear capability
B countries that predominantly speak English and countries whose citizens are multilingual
C countries that allow its citizens to live in freedom and countries who enslave people
D countries that are very wealthy and countries that do not have much money