For a foreign citizen to become become a U.S. citizen.
Probably c or b to t makes sense
1948–49, to force the Western Allied powers (the United States<span>, the </span>United Kingdom<span>, and </span>France<span>) to abandon their post-World War II jurisdictions in </span>West Berlin. In March 1948 the Allied powers decided to unite their different occupation zones of Germany<span> into a single economic unit.</span>
Perigee is the <span>word that describes the position in the moon's elliptical orbit when it is closest to Earth</span>