In Later Treaties Signed by China with France and the United

In later treaties signed by China with France and the United States, an important addition was the most-favored nation clause, which stated that:

A) any new concessions granted to one country automatically reverted to those who by treaty were "most-favored nations."
B) no new concessions could be granted to any country which was not already a "most-favored nation."
C) any new concessions granted to one country could not automatically revert to those who by treaty were "most-favored nations."
D) no new concessions could be granted to those who by treaty were "most-favored nations."