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

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 alternatives is true.