Declining value is a depreciation method

The claim that businesses should pay attention to the desires of their potential customers to, "reuse content

legally and easily for mashups, fan sites . . .. and create their own interactive web applications," is based on the commonplace a. cost/benefit. b. differentiation. c. wisdom of crowds. d. sign.

The middle point of a set of numbers is the ________

Fill in the blanks with correct word