The correct answers are C) U.S. promises to not invade Cuba and D) The U.S. removes missiles from Turkey.
The terms of the agreement in which the missiles were finally removed from Cuba were the following: the U.S. promised to not invade Cuba and the U.S. removes missiles from Turkey.
We are talking about the conflictive and tense years of the Cold War in which the Soviet Union competed in the arms race and later in the space race. The world lived tense moments that were at its peak during the Cuban missiles crisis of 1962, where the world was on the brink of another war.
The secret agreement between the US and USSR to remove the Soviet missiles from Cuba was that the US publicly stated that it wouldn't invade Cuba and that the US would remove its missiles in Turkey.
