The world improved but it isn't necessarily better. There are still many forms of discrimination and prejudice, so in a way we have just stayed the same.
The main reason why the United States was so interested in the security of Latin America is because the Latin American countries were so close to the US, meaning that if they were invaded by European powers it would post a threat to the US.
The correct answer is D. Rectangle
All of the other shapes are almost never used by anyone, not only journalists. You can easily check this in any newspaper.
