Which of the Following Statements Represents a Possible Measure of Success

Which of the following statements represents a possible measure of success in Step 1-define the problem of the five-step marketing research approach?

A) You have three weeks and $10,000 to determine if it is going to be profitable to serve breakfast on weekdays or not.
B) If three-year olds like this product,then it stands to reason that four-year olds will like it even more.
C) Use mail questionnaires,not focus groups.
D) Let's identify the most cost effective method of advertising.
E) If the test subject eats most or all of the sample during the taste test,it will be assumed that he or she likes it.