Which of the following statements is an example of evidence a historian could use to support a claim abiut the american civil war?
a. the south could never have won the civil war due to its weak economy
b. different historians interpret the civil wars causes and effects in different ways
c. readers should pay attention to my opinions on the civil war
d. the emancipation proclamation freed slaves only in states that had seceded from the union

The correct answer is D. The emancipation proclamation freed slaves only in states that had seceded from the union, is an example of a statement of evidence that can be used to support a claim about the civil war.

Historians use primary and secondary sources as evidence for their research. Primary sources are sources of information that were created at the time under the study, documents, manuscripts, diaries, are examples of these sources. In this case, the correct answer is a statement about a document that was created during that historical event, therefore it can be used as evidence. The rest of the answers are based on opinions or assumptions and cannot be used as evidence.  

i think it would be a

the most famous of all the units fighting in cuba, the "rough riders" was the name given to the first u.s. volunteer cavalry under the leadership of theodore roosevelt. roosevelt resigned his position as assistant secretary of the navy in may 1898 to join the volunteer cavalry. the original plan for this unit called for filling it with men from the indian territory, new mexico, arizona, and oklahoma. however, once roosevelt joined the group, it quickly became the place for a mix of troops ranging from ivy league athletes to glee-club singers to texas rangers and indians.