Suppose that for iPhones, apps are used rarely by low-value owners but intensively by high-value owners. If Apple also exclusively supplied all apps compatable with iPhones, it would maximize profits by setting a
A. low price for iPhones and charging a fee to download each app.
B. high price for iPhones and charging a fee to download each app.
C. low price for iPhones and not charging for apps.
D. high price for iPhones and not charging for apps.