Multiple Choice
The Principle of Relative Constancy refers to:
A) The importance of grammar in promoting communication technologies.
B) The observation that the proportion of disposable income spent on media has remained relatively constant over time.
C) The observation that the amount of time spent on media has remained relatively constant over time.
D) The observation that the number of channels of communication has remained relatively constant over time.
Correct Answer:

Verified
Correct Answer:
Verified
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