An Ad for the Tributary Hotel in Chicago Has a Number

Multiple Choice

An ad for The Tributary Hotel in Chicago has a number that people can call on if they are interested in reserving rooms at the hotel or for further information about the hotel. One way to determine the effectiveness of this ad is to count the number of phone calls it receives in response to the ad. This response count is an example of:

A) feedback.
B) encoding.
C) noise filtering.
D) noise blocking.
E) decoding.