1. According to this author, the causes of The Great Depression... a. are agreed upon by all historical scholars.
b. are taught only in upper-level history courses in universities.
c. are not always agreed upon by everyone that studies history.
d. can only be understood by studying the economy of Great Britain.

I have found this question online. It refers to an article called "5 Causes of the Great Depression."

According to this author, the causes of the Great Depression:

c. are not always agreed upon by everyone that studies history.

Explanation:

In the very first paragraph, the author explains that there is "no agreed-upon list" of all the causes for the Great Depression. However, there are some that have been cited the most by scholars, such as the stock market crash, bank failures, and the American economic policy with Europe. In other words, different scholars have different opinions on what the main causes were, but it is possible to choose, among the causes they mention, the ones that are spoken of most often. Having that in mind, we can choose letter C as the best option:

c. are not always agreed upon by everyone that studies history.

answer; ///the declaration of independence;

its b i googled it wish u luck