Which of the Following Is an Example of Sponsor Nondisclosure

Which of the following is an example of sponsor nondisclosure?

A) Dean and Deluca doesn't want Whole Foods to know about it is conducting research on organic wines
B) Whole Foods is studying a potential new location near a large condo complex
C) Bayer seeks to disclose that Vioxx is no more effective than aspirin
D) Vioxx seeks to hide results suggesting that it is equivalent to aspirin in reducing the pain of arthritis
E) all of the above