What is the name of country - labeled in green - that is less than 100 miles off the coast of florida

The country that is almost at 100 miles from Florida is Cuba.

Explanation:

This is a very open question but Cuba is the right answer for two things. First, there are 2 countries inside the 100 distance limit you have set in your question. But there is a big distance between them. The Bahamas are located near an almost 50 miles distance from Florida, so if you would have asked for the country in a 50 miles distance the Bahamas would have been the right question. But because you went further and said 100 and Cuba are 96 miles away from Florida Cuba is the correct answer.

cuba is your answer! have a guud day