OG9 阅读 Q38

Choice C is the best answer. In the first sentence of the third paragraph, Smith states "by the Constitution of the United States, the whole physical power of the North is pledged for the suppression of domestic insurrections, and should the slaves, maddened by oppression, endeavor to shake off the yoke of the taskmaster, the men of the North are bound to make common cause with the tyrant, and put down, at the point of the bayonet, every effort on the part of the slave, for the attainment of his freedom." In other words, according to Smith, if slaves were to revolt, the US Constitution would require that Northern states help the slave states fight the slaves' rebellion.
Choices A, B, and D are incorrect because Smith doesn't argue that if the slaves were to revolt the US Constitution would require the Northern states to sever ties with the slave states (choice A), give shelter to refugees from the slave states (choice B), or provide financial assistance to the rebelling slaves (choice D).