The ratification of _______ by the US marked the beginning of US efforts in setting up a military alliance around the Soviet Union and its allies.

The ratification of _______ by the US marked the beginning of US efforts in setting up a military alliance around the Soviet Union and its allies.

A.the Treaty of Versailles

B.the North American Free Trade Agreement

C.the North Atlantic Treaty

D.the Warsaw Treaty

正确答案是C