When Evaluating the Sustainability of a Competitive Advantage Which of the Following

When evaluating the sustainability of a competitive advantage which of the following is NOT true?

A) The advantage will not be sustainable if there are substitutes for the firm's core competence.
B) If managed effectively, existing core competencies can sustain a competitive advantage indefinitely.
C) Path dependence and social complexity increase the time that the advantage is sustainable.
D) When expectations of future resource value turn out to be accurate, and can be repeated, than a sustained competitive advantage is realized.