How did Julius Rosenberg help the Soviets?

Answer at the bottom

Explanation:

Julius was a helpful part of the Soviet Union because he was there spy.He would spy and bring back important information to the Soviet Union and the recruited Manhattan Project spies.

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an expansion is one of two basic business cycle phases; the other is contraction. the transition from expansion to contraction is a peak, and the changeover from contraction to expansion is a trough.

the answer is a) to be able to obey them.