The American Civil War was caused not by
slavery but by economic factors is an example of a thesis that a historian
might write.
A thesis or dissertation is a document submitted in support of
candidature for an academic degree or professional qualification presenting the
author's research and findings.
The correct answer between all
the choices given is the second choice or letter B. I am hoping that this
answer has satisfied your query and it will be able to help you in your
endeavor, and if you would like, feel free to ask another question.
