The Cuban Missile Crisis was important in the Cold War. Kennedy succeeded in persuading the Soviets to remove the missiles from Cuba. This led to a decrease in tension between the superpowers.

Which revision would be the most effective way to make the language in the first sentence more precise?

A. The Cuban Missile Crisis was a big event in the Cold War.
B. The Cuban Missile Crisis marked a turning point in the Cold War.
C. The Cuban Missile Crisis decreased the Cold War.
D. The Cuban Missile Crisis happened during the Cold War.