Apple IncHas Developed ITunes,a Unique Propriety Software System That Supports Apple's

Multiple Choice

Apple Inc.has developed iTunes,a unique propriety software system that supports Apple's need to delivery digital content to its customers. Apple chooses to develop iTunes rather than use an existing enterprise system solution,most likely because:

A) The critical process of content delivery is Apple's strategic advantage.
B) The ability to integrate with existing enterprise systems does not exist.
C) It was too costly for Apple to purchase an enterprise system.
D) Apple was not satisfied with the look and feel of existing enterprise systems.