__ measures the number of target consumers exposed to a commercial at least once during a specific period, usually four weeks.

__ measures the number of target consumers exposed to a commercial at least once during a specific period, usually four weeks.

__ measures the number of target consumers exposed to a commercial at least once during a specific period, usually four weeks.


a. Noise level
b. Frequency
c. Reach
d. Synchronization
e. Cost per contact


ANSWER: c


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