Answer: None of these statements must be true
Explanation:
Based on the scenario in the question, the first option cannot be true. This is because in the long run, the nation cannot be impoverish.
The second option is also incorrect. This is because the wealthy American buyer is not taking advantage of Juan's naiveté. Juan is doing what he does at his own will and nobody is taking advantage of him.
The third option is s.also incorrect. Therefore, all the options are incorrect.