All of the Following Are Flaws with Using Click-Through Rate

Multiple Choice

All of the following are flaws with using click-through rate as a measure of the amount of interest or attention a Web site is receiving EXCEPT:

A) does not differentiate between a lot of activity by a few visitors and a little activity by many visitors
B) some hits are likely made by mistake
C) research lacks information about the meaning behind the numbers
D) does not adequately measure the number of times an ad is clicked on