Given the Following Enthymeme: Tiffany Sells Only Expensive Watches, So

Multiple Choice

Given the following enthymeme: Tiffany sells only expensive watches, so Cartier watches must be expensive.
The statement needed to convert the enthymeme into a valid syllogism is:

A) Tiffany sells some watches that are not expensive. (Conclusion)
B) Tiffany also sells Rolex watches. (Premise)
C) The Cartier Corporation owns Tiffany. (Premise)
D) Not all Cartier watches are expensive. (Conclusion)
E) Tiffany sells Cartier watches. (Premise)