By pledging to be a leader in providing clean, renewable energy sources and developing products and services that help consumers protect the environment, Green Mountain Power competes successfully against "cheaper" brands that focus on more price-sensitive consumers. Green Mountain Power has the firm belief that even kilowatt-hours can be ________.
A) cost-plus priced
B) represented by a demand curve
C) differentiated
D) value-based priced
E) none of the above
Answer: C