Which option distinguishes why the company in the following scenario would go back to the brainstorming phase?
ABC Food Company just launched a new cake mix, and it is the best-selling cake mix on the market in its first three months.
a. It needs to develop a follow-up to the new product.
b. Selling trends indicate it will begin declining.
c. The cake mix's popularity cannot be guaranteed.
d. The product development process is long and tedious.