Answer: google just use google brainly sucks
The answer would be "a supporting detail".
In the paragraph that the underlined sentence is in it is talking about how speaking many different, or foreign, languages can help you in life. The underlined sentence supports this because it is giving an example of how speaking multiple languages could help you in life.
The main reason why <span>Roosevelt felt the need to propose expanding the number of justices on the Supreme Court is because he knew that this would help him retain his New Deal policies--many of which were being challenged in the court. </span>
Cuba is what you are looking for.