The answer I believe is D) The loss of healthy young men during World Wars I and II created an excess of healthy, marriageable young women.
The relationship between the Louisiana Purchase and political power was that it was seen as unconstitutional (and the Federalists argued this) to acquire this territory which spanned a huge region across the United States and Canada, but since Thomas Jefferson (who was then the President) had the final say, he decided this was because he had the most political power, so this showed he felt above the Constitution of the United States, because he had treaty power.
Sleet is a form of precipitation consisting of ice pallets, often mixed with rain or snow.