Graham Had Developed an Extremely Successful Advertising and Promotion Campaign

Graham had developed an extremely successful advertising and promotion campaign for a client in the U.S.The client wanted to roll the same campaign out to markets worldwide,but Graham cautioned against doing this because:

A) differences in languages,customs and culture might make the campaign meaningless and ineffective in some markets.
B) copyright and intellectual property concerns prevented him from wanting to share his good ideas outside of the U.S.market.
C) he had not applied for or received international certification which was required for working outside the U.S.
D) he was unfamiliar with the code of ethics for advertising in other countries.
E) All of these.