Regarding the Idea Generation Stage of the New-Product Development Process,which

Regarding the idea generation stage of the new-product development process,which of the following is true?

A) Business firms often get new product ideas from competitors.
B) It is best to focus on only a few good ideas at this stage.
C) Studying customers' ideas is not very helpful,since they tend to focus on minor technical changes in existing products.
D) Most companies don't need a special procedure for seeking new-product ideas,because so many ideas are coming from so many different sources.
E) None of these answers is correct.