Geography Final Jeopardy clue (30 Oct)--Was it correct? [unboxed spoilers]

I don’t recal the exact wording, but the question ran along the lines of “This continent is the only one where four countries come together at a point.” The expected response was supposed to be “What is Africa?” because Zimbabwe, Zambia, Namibia, and Botswana meet at a point in the Zambezi River. But from looking at my map, it looks to me like Zimbabwe and Namibia are separated by a few miles. Do they really meet at a point?

I said “What is Asia?” thinking of the area where Mongolia, Kazakhstan, Russia, and China come together. But on checking the map, I see that Mongolia and Kazakhstan are separated by several miles.

All i could find on the subject was this article from Encyclopedia Britannica, which says:

and this: