Both a and c are correct, however I think that A would be the most correct answer in this case.
Answer:
A secondary source is any source about an event, period, or issue in history that was produced after that event, period or issue has passed.
Explanation:
Aside from a textbook, the most commonly assigned secondary source is a scholarly monograph - a volume on a specific subject in the past, written by an expert.Secondary sources describe, summarize, or discuss information or details originally presented in another source; meaning the author, in most cases, did not participate in the event. ... Examples of a secondary source are: Publications such as textbooks, magazine articles, book reviews, commentaries, encyclopedias, almanacs.
Hope this helps :)
After the people of Illinois became too hostile for the Mormons to stay there any longer (and also, after their church's founder, Joseph Smith, was killed as a result of that violence), Brigham Young took over as leader of the Mormons and led the group out of Illinois and to the present-day state of Utah, where they established a colony on the shores of the Great Salt Lake called New Zion.
If you are talking about WW1, then the 3 factors are the Zimmerman Telegram, The sinking of the Lusitania, and economic interests
B. Given to the president exclusively.
