What distinguishes a primary source from a secondary source in history?

What distinguishes a primary source from a secondary source in history?

• A. A primary source provides firsthand, original information from the time or event; a secondary source interprets or analyzes primary sources.
• B. A primary source is always more accurate than a secondary source.
• C. A secondary source is always less reliable than a primary source.
• D. There is no difference between the two.

Answer: (A)