In the absence of a physical product, service providers need to consider the use of ______ that enable customers to make a judgment on the service quality.

In the absence of a physical product, service providers need to consid

1.	In the absence of a physical product, service providers need to consider the use of ______ that enable customers to make a judgment on the service quality.
A.	Intangible clues
B.	Tangible clues
C.	Blueprint
D.	Performance measures
Answer» C. Blueprint