Cape Verde is all the way to the west, and you have it as the eastern most point. Tunisia is all the way in the north and you have it as the southern most point.
That is because the questions are asking for the country which ranks lowest in each category, as explained in the caveat. Since Cape Verde is located far west, it is last place when looking at each country's easternmost point, and since Tunisia is far north it is last place when looking at southernmost point.