Choice C is the best answer because in lines 37–39, Jordan draws a contrast between political motivations and “high crime[s] and misdemeanors” as the basis for impeachment and argues that impeachment “must proceed within the confines” of the latter concept. These lines thus serve as the best evidence for the answer to the previous question.

Choice A is not the best answer because lines 9–11 only address a misconception that Jordan contends some people have about what a vote for impeachment means. These lines thus do not serve as the best evidence for the answer to the previous question.

Choice B is not the best answer because lines 14–16 only speak to a division of responsibility between the two houses of the U.S. Congress. These lines thus do not serve as the best evidence for the answer to the previous question.

Choice D is not the best answer because lines 44–46 (“Congress...transportation”) serve mainly to indicate that the U.S. Congress has an extensive and important agenda. These lines thus do not serve as the best evidence for the answer to the previous question.