Who made the quote "In my opinion, the State Department, which is one of the most important government departments, is thoroughly infested with Communists."

Senator Joseph McCarthy

Explanation:

Senator Joseph McCarthy made the quote "In my opinion, the State Department, which is one of the most important government departments, is thoroughly infested with Communists." He made this statement February 1950 which later led to the investigation of the military and subsequent senate hearing in 1954.

a) it is located in central mexico.