The fact that marketing and advertising people have backgrounds and interests that are often quite different from consumers who comprise mass markets for many products and services makes it difficult to establish:

The fact that marketing and advertising people have backgrounds and interests that are often quite different from consumers who comprise mass markets for many products and services makes it difficult to establish:



A. decoding.
B. feedback mechanisms.
C. response hierarchies.
D. a common ground.
E. fields of experience.


Answer: D


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