Which of the following most accurately reflect a company's resource strengths?
A. whether it has a more profitable business model than close rivals
B. sizes of its profit margins and return on investment vis-à-vis those of key rivals
C. whether it has more primary activities in its value chain than close rivals and a better overall value chain than these rivals
D. its core competencies, competitive capabilities, and valuable intangible assets
E. sizes of its unit sales, revenues, and market share vis-à-vis those of key rivals