Answer:
The answer to this question is option "A"
Look it up and read about it on wiki
In 1803, U.S. representatives in Paris agreed to pay $15 million<span> for about 828,000 square miles of land that stretched from the Mississippi River to the Rocky Mountains and from the Gulf of Mexico to Canada. This deal, known as the Louisiana Purchase, nearly doubled the size of the United States. It's quite amazing if you ask me, that's a lot of money.</span>
