In what way can the trial of Julius and Ethel Rosenberg be considered an aspect of the Red Scare of the 1950s?
A. Julius Rosenberg was forced to admit he was a Communist.
B. The Rosenbergs were blacklisted by Joseph McCarthy.
c. It wasn't clear that Ethel Rosenberg was a Soviet spy.
D. There is no evidence that either of the Rosenbergs was a spy.

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.