Customer loyalty is an important aspect of building a brand, but sales are only one measure of customer loyalty. suppose you are a marketer for the goods or services below. For each, list the types of data you would want to collect to gauge customer loyalty, and the method you would use to gather it.
a. athletic shoes
b. bottled water
c. over the counter cold and flu medication
d. self service car wash
e. travel agency that specializes in adventure vacations