You get an A because you're awesome.
You get a B because you're beautiful.
You can have a C because you're confident.
But you're gunna get this D because you deserve it!
Are you a concrete arch-gravity embankment in the Black Canyon of the Colorado River, on the border between the U.S. states of Nevada and Arizona constructed between 1931 and 1936 during the Great Depression and dedicated on September 30, 1935, by President Franklin D. Roosevelt?