Which sentence does not contain any errors in comma usage?
A. A paper mill eventually opened in Spain and, the art of making paper spread from here.
B. The inventor gathered bark and rags and then he or she made a pulp.
C. The Chinese kept the formula to themselves, but, in 751 the Arabs learned the Chinese secret.
D. Some papermakers used rags, and others used animal hides.
I will give a Brainliest answer and you can my best sister or brother.
