Which two tests of a resource's competitive power determine whether a company's competitive advantage can be sustained in the face of active competition?
A. Whether the resource or capability is competitively valuable and/or is something that rivals lack
B. Whether the resource or capability is rare and/or is hard to copy
C. Whether the resource or capability is easy to copy
D. Whether the resource or capability is competitively valuable and/or there are good substitutes available for the resource
E. Whether the resource or capability is hard to copy and/or can be trumped by different types of resources and capabilities
Answer: Whether the resource or capability is hard to copy and/or can be trumped by different types of resources and capabilities