Which of the Following Statements Accurately Characterizes the Post-Civil War

Which of the following statements accurately characterizes the post-Civil War western cattle boom?

A) The boom aided the later development of agriculture by providing a good source of fertilizer.
B) It attracted both investors seeking large profits and romantics drawn by the allure of the West.
C) It required the extensive introduction of new feed crops.
D) The ranchers demonstrated unusual foresight in protecting the environment.