In the Context of Trademarks,when Does Secondary Meaning Arise in a Mark

Multiple Choice

In the context of trademarks,when does secondary meaning arise in a mark?

A) when a mark that resembles a mark already registered with the federal PTO is used for a new product or service
B) when descriptive words independent of the product are used to identify the product itself
C) when ordinary words establish new meaning due to its attachment to a product or service
D) when a distinctive mark or design is created for a new product or service