oG 13 逻辑103 求解

为什么E不对呢？
unanimous 不就是 high degree 的 accord么？
原题
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. Atotal blockade of Patria's
portsis necessaryto an embargo, but such an action would be likely to cause international discord over the
embargo.
The claims above, if true, most strongly support whichof the following conclusions?
(A) The balance of opinion is likely to favor Patria in the event of a blockade.
(B) As long as internationalopinion is unanimously against Patria, a trade embargo is likely to succeed.
(C) A navalblockade of Patria's ports would ensure that no goods enter or leave Patria.
(D) Any trade embargo againstPatria would be likely to fail at some time.
(E) For ablockade of Patria'sportsto be successful, international opinionmustbe unanimous