The correct answer is C. He states a main idea and offers details to make his point.
Explanation
In the text "Wilson's war message to Congress" the author establishes the central idea "We have no dispute with the German people" and then presents ideas of support for it, for example, "It was not by their impulse that his government he acted upon entering this war ", and "It was a determined war as wars used to be determined .. when the rulers did not consult the peoples anywhere .. accustomed to using their fellow men as pawns and tools". According to the above, the correct answer is C.
