In trademark terms, what is acquiring secondary meaning?

Question

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 are used that have no direct relevance to a product or service
C. when ordinary words establish new meaning due to their attachment to a product or service
D. when a distinctive mark or design is created for a new product or service

I'm thinking C or D.. Really need help on this one..

Answer 1

This information should clarify this term.

http://law.freeadvice.com/intellectual_property/trademark_law/secondary_meanings.htm

Answer 2

ok thanks

Answer 3

miss Sue is it D? I read the article

Answer 4

I think it is D

Answer 5

Why do you think it's D?

Answer 6

I read it like a million times and came up with B now

Answer 7

It's c

Answer 8

The answer is C.