Which of the Following Is True of Trademarks

Multiple Choice

Which of the following is true of trademarks?

A) A successful trademark is one that becomes a generic name for a product, for example, "Xerox" has become a generic term for making photocopies.
B) A successful trademark is one that allows consumers to immediately identify the source or producer of the product.
C) If a firm is granted a trademark, then no other firms can legally produce similar products for a given period of time.
D) If a firm is granted a trademark, then no other firms can legally sell in the same geographic area for a given period of time.