Which two key events in the Cold War happened before 1970?(1 point) Responses the adoption of the Marshall Plan and China’s shift to democratic rule the adoption of the Marshall Plan and China’s shift to democratic rule the collapse of the Warsaw Pact and the end of the Vietnam War the collapse of the Warsaw Pact and the end of the Vietnam War the adoption of the Marshall Plan and the Cuban Missile Crisis the adoption of the Marshall Plan and the Cuban Missile Crisis the signing of the Nuclear Test-Ban Treaty and the fall of the USSR