In the Context of the Various Measurements Used to Compare

Multiple Choice

In the context of the various measurements used to compare the Internet's advertising effectiveness to other media,the click rate is:

A) the number of ad impressions divided by the number of clicks on an ad.
B) the number of ad impressions added to the number of clicks on an ad.
C) the number of ad impressions subtracted from the number of clicks on an ad.
D) the number of clicks on an ad multiplied by the number of ad impressions.
E) the number of clicks on an ad divided by the number of ad impressions.