In the transportation model, shadow prices are effective in the ranges defined by the allowable increase and allowable decrease values

According to the text, competencies:

A. are skills or abilities required in order to achieve competitive advantage. B. refer to the ability of a company to have higher rates of profits than its competitors. C. create value for customers and for which customers are willing to pay. D. create value for manufactures and for which customers are willing to pay. E. refer to the ability of a company to have higher rates of FDI.

____ responded to the customer's complaint promptly

A) They B) Them