For a trade embargo against a particular country to succeed, a high degree of both international accord and ability to prevent goods from entering or leaving that country must be sustained. A total blockade of Patria's ports is necessary to an embargo, but such an action would be likely to cause international discord over the embargo.
The claims above, if true, most strongly support which of the following conclusions?
(A) The balance of opinion is likely to favor Patria in the event of a blockade.
(B) As long as international opinion is unanimously against Patria, a trade embargo is likely to succeed.
(C) A naval blockade of Patria's ports would ensure that no goods enter or leave Patria.
(D) Any trade embargo against Patria would be likely to fail at some time.
(E) For a blockade of Patria's ports to be successful, international opinion must be unanimous.
正确答案是D，现在就是对B和E的解释想不通，都说是contradict the given information，可是international accord不是embargo成功的必要条件之一么？
文中说了要成功，需要a high degree of both international accord and ability to prevent goods from entering or leaving that country 所以B中只有international accord 不能解决问题 E中的blockade of Patria's ports 和international opinion 在文中是likely cause discord 的相反关系，所以E也要排除
啊，谢谢楼上回复，感觉好像想通一些了
其实选项应该理解为“结论”，而不是“条件”
原文中的条件如果是肯定的，即would be likely to cause international discord over the embargo是肯定的，那最能推出以下哪个结论
所以OG的解释才说B和E都是和原文所提供的信息矛盾的
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