B

A British doctor, a German doctor and an American doctor were chatting.

The British doctor said, "Medicine in my country is so advanced that we can take a kidney out of one man put it in another and have him looking for work in six weeks."

Then the German doctor bragged, "That's nothing, we can take a lung out of one person, put it in another and have him looking for work in four weeks."

The American doctor, not to be outdone, says, "You guys are way behind. We took a man with no brain out of Texas, put him in the White House, and almost immediately afterwards half the country was looking for work."