Which of the Following Is the Best Way to Evaluate

Which of the following is the best way to evaluate the results of sponsoring a marathon?

A) Count the number of people who attended the event assuming they were all exposed to the company's name
B) Count the total number of advertisers participating in the event and dividing by the length of the event
C) Measure spending equivalencies between free media exposure and comparable advertising space or time
D) Take a survey of event attendees and ask if they recall seeing the company's name
E) Calculate the cost per thousand of putting up billboards across the entire marathon area