Chapter $3$ in the book discusses industry analysis $($Porter$$s Five Forces of rivalry, buyers, suppliers, threats of new entrants, and substitutes$).$ Consider CVS as positioned in the rivalry category of the Porter$$s Five Forces Model. Using information from the case, which ones of the following forces $($buyers$,$ suppliers, rivalry, substitutes, threat of new entrants$)$ are more powerful than others in affecting the profitability of firms, such as CVS$,$ in the U$.$S$.$ healthcare delivery industry or the U$.$S$.$ retail pharmacy industry today? $($Pick one of those two industries for your response to Question #$2).$ Draw on the case information. Explain your answer by discussing the two forces that you deem most powerful. Draw on logic from Chapter $3$ to explain your choice of the two forces. I only expect you to discuss two of the Porter$$s Five Forces.