The correct answer is B) Durer; Krug.
A drawing by Durer may have been used as the basis for the Apple Cup, but the metalwork was a collaboration of the Krug family.
Albert Drurer (1471-1528), was a German painter. That belonged to the Renaissance period. He was supported by Emperor Maximilian I, and had relationship with other artists of the time such as Leonardo Da Vinci, Raphael, and Bellini. The drawing in the photo(attached) by Durer may have been used as the basis for the Apple Cup, but the metalwork was a collaboration of the Krug family.