Read the passage from a letter by Christopher Columbus. The inhabitants . . . are well made, but because they are timid and full of terror. . . . But when they see that they are safe, and all fear is banished, they are very guileless and honest, and very liberal of all they have.

–Letter to Gabriel Sanchez, Christopher Columbus

Why might the credibility of the passage be questioned?

A. It is short.
B. It is biased.
C. It is detailed.
B. It is objective.