Hello!!!
The answer to your question is B. Financial issues.
Hope I helped!!! ;)
This is because both Puerto Rico and the Virgin Islands were unincorporated territories of the United States with the U.S president as head of State. There was no need to patrol Puerto Rico and the Virgin Islands as the U.S blockade was against Cuba, not against the two U.S territories.
The West Indies was what the islands are sometimes called to this day, this came from the (false) belief that Columbus has discovered Asia/India.
There are many contributions of ancient Greece that helped the modern western world develop, but the best option from the list is "C. <span>election of political leaders"</span>
The answer to your question is D.