The first gas tanks were send with german troops
The answer for this question is B
The correct answer is A, "point of view".
When we talk about perception we are thinking about how individuals experiment reality from their personal positions in the world. That's what originates the expression <em>point of view</em>.
It should not be mistaken with "historical bias" (B). A historical bias is constructed from a point of view, that is, from someone's perception. The phrase given is talking about the cause of historical bias, not about it specifically.
<span>The 14th and 15th amendment (documents) both for women's rights. </span>
It is a primary source because the letters are an immediate, first-hand account of the topic (war).