Which statement best summarizes what Churchill is saying in this section? "In front of the iron curtain which lies across Europe are other causes for anxiety. … in a great number of countries, far from the Russian frontiers and throughout the world, Communist fifth columns are established and work in complete unity and absolute obedience to the directions they receive from the Communist center. Except in the British Commonwealth and in the United States where Communism is in its infancy, the Communist parties or fifth columns constitute a growing challenge and peril to Christian civilization." — Winston Churchill

Communism exists on both sides of the Iron Curtain.

The United States and Britain are the only countries that do not have Communist parties.

The Soviet Union secretly controls every country in the world.