There is no country in North America that starts with the letter "L", never mind one that touches the Mediterranean Sea.
There is no country that borders the Mediterranean Sea whose name starts with a "K".
Lebanon
El Salvador.
There is no country proper that borders the Mediterranean that starts with the letter "U". The only "U" countries are: Uganda, Ukraine, United Arab Emirates, United Kingdom, United States, Uruguay, and Uzbekistan. All of these countries do not border the Mediterranean Sea, but some of the overseas territories of the United Kingdom like Gibraltar and Akotiri and Dhelika do border the Mediterranean.
Tanzania.
Djibouti
Luxembourg.
Denmark
No country that borders Libya starts with the letter B.
Rwanda
Cyprus is a country in Europe. It is an island country in the Eastern Mediterranean.
Venezuela is a country in South America. It is the only country in South America that starts with the letter V.