Secondary succession happens in a place where there had been living organisms. ... The soil contains little dead vegetation.
Julius and Ethel Rosenberg were Jewish American citizens who were convicted, with others, of conspiracy for espionage on behalf of the Soviet Union in the late 1940s, when it was an ally of the United States during World War II. They were tried, convicted, and executed by the federal government of the United States.
The answer might be a. depending on the place
