Answer: A. Both worked to create the first atomic bombs for the USSR.
Both the Rosenbergs and the United States government worked together to create the first atomic bomb for the USSR. The Rosenbergs, an American couple, were executed using an electric chair after being found guilty of espionage. For their role in sharing top-secret atomic secrets to the Soviets during and post-World War II, they were sentenced to death and executed in 1953.
This case garnered massive attention from all over the world as a result of its sensitivity. While some people supported the execution of the couple, others saw it as a way of making the Rosenberg couple a form of scapegoat to the cold war. Authorities from the UK and the FBI were able to find enough evidence to prove that this top secret information was shared with the Soviets.