Correct Answer: D
Explanation:
Option A : Although international discord would likely result from a blockade, no information allows a conclusion to be drawn about the balance of opinion.
Option B : This conclusion is not justified because a successful embargo requires both international accord and the ability to enforce the embargo.
Option C : This statement simply defines the purpose oaf blockade; it is not a conclusion from the information given.
Option D : Correct. This statement properly identifies a conclusion supported by the claims.
Option : E The necessary condition for success is a high degree of international accord, so this conclusion cannot be justified.
The correct answer is D.