Travis is researching information about the Holocaust. His friend Raymond's grandmother was alive during World War II. She remembers reading about what was happening in Germany as well as watching stories on the news. He also checked out from the library. The book is a teenage Jewish girl's personal story of hiding from the Germans during the Holocaust.

What is one way for Travis to decide which source is most credible?
A.
Raymond's grandmother is the most reliable source because she remembers reading about the Holocaust.
B.
The book is the most reliable source because it came from the library and tells the story of hiding in attics.
C.
The book is the most credible source because it tells the story of someone who lived during the Holocaust.
D.
Raymond's grandmother is the most credible source because she was alive during the Holocaust.
help please