Respuesta :
Answer:
C) A letter from the book's writer discussing how much he hates Roosevelt.
Explanation:
If the author openly admits in a letter that he hates Roosevelt, this is a very condemning evidence of bias. The photograph and the speech that are included in the book are not necessarily biased because they simply reflect a fact, and because we do not know the specific purpose they serve in the book. Option D is also wrong because the description of Roosevelt in a secondary source has no relevance to the way it is portrayed in this book.