Which of the Following Would Be a Danger of Relying

Which of the following would be a danger of relying upon a primary source?

A) The author of the primary source may describe or interpret research results incorrectly.
B) Primary sources typically do not contain the details of methodology that are required for critical evaluation.
C) The author may describe results incorrectly and the source does not contain details of methodology.
D) There is no danger because you can rely on primary sources for accurate information.