The answer is D. A set of diary entries written by generals who planned strategies during world war II. This is a primary source which was written during that time period and so would be the best support for the authors' argument..
While you didn't really provide the "following" as the comment above me states, in general, the advantage of secondary sources of primary ones is that they perhaps provide a more objective or even just a broader view on a certain topic. While a primary source of the American civil war would be a letter written by a soldier, a secondary source would be a book that describes more letters taken together and discusses possible information regarding them.
The answer to this is option A! :)
Brainliest appreciated
Hello there.
<span>Which of the following best describes how European powers responded to Islamic expansion?
</span><span>C.Europeans viewed the spread of Islam as a threat, and actively worked to stop it.
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<span>Unitarians were set apart from other Christian denominations because Unitarians have a believe that God is composed of only one entity. Most other Christian denominations believe that God is a trinity that is composed of the father, son, and the holy spirit.</span>
