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You are in the new product development process for a new snack food product. So far, everything has been very positive, and you are starting to believe this product might be a blockbuster. As you prepare for the next stage of the process, you are concerned that your competition might try to "jam" your new product by increasing promotional activities for their own products. More importantly, you are concerned that these competitors might try to copy your product as you move into this next stage.

Which of the following stages of the new$-$product qievelopment process are you about to enter?

a$.$ Product development

b$.$ Test marketing

c$.$ Concept testing

d$.$ Commercialization

$$ e$.$ Screening