How Can IT Resources Help to Create a Sustained Competitive

How can IT resources help to create a sustained competitive advantage?

A) Because competitors who seek to replicate the initiative must first develop or acquire the needed IT resources
B) Because competitors who seek to replicate the initiative must overcome the preemptive mechanisms, such as complementary resources, enacted by the leader
C) Because IT resources are highly visible yet complex and unique, and those projects take more time to complete
D) Because the people that implement IT solutions are difficult to find and, when found, tend to stay with one employer.
E) There are no sustained competitive advantages, other than relationships between consumers that the company can capitalize on.