Why Is Successful New-Product Introduction Becoming Increasingly More Difficult

Why is successful new-product introduction becoming increasingly more difficult?

A) Government regulations require all products to wait at least two years before introduction.
B) Many international companies are not engaging in product innovation.
C) New-product development costs are so low that any company with a good idea can create a new product.
D) Products become out-dated at a much faster rate than ever before.
E) All of the above