The use of sales effects as a measure of advertising effectiveness is problematic because:
A) sales are affected by many factors other than advertising.
B) there is a time lag between when advertisements are aired and when sales response occurs.
C) sales are difficult to measure.
D) all of the above
E) none of the above

Question

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The Answer of The use of sales effects as a measure of advertising effectiveness is problematic because:
A) sales are affected by many factors other than advertising.
B) there is a time lag between when advertisements are aired and when sales response occurs.
C) sales are difficult to measure.
D) all of the above
E) none of the above

The Use of Sales Effects as a Measure of Advertising