Question

A reliable source

(A) may contain some biased information.
(B) is written from a trustworthy point of view.
(C) is usually a secondary source.
(D) must be a primary source.

Answer 1

(D) must be a primary source.

Step-by-step explanation:

Answer 2

A reliable source can be primary or secondary, eliminating answers c and d. If it is truly reliable, then naturally it would not contain biased information, eliminating choice a. Therefore, the only feasible answer is b.