A Marketing Researcher Hypothesizes That Injunctive Norms Are More Likely

A marketing researcher hypothesizes that injunctive norms are more likely to convince people to buy organic food than descriptive norms. How might the researcher BEST test this hypothesis?

A) by presenting participants facts about the number of people who buy organic foods in five different countries, and then assessing participants' interest in learning more about organic foods
B) by randomly assigning participants to remember a time either when they did something moral or when they did something immoral, and then measuring their willingness to buy organic foods
C) by measuring the extent to which participants' tend to make decisions based on the behavior of others, and then measuring how often participants buy organic foods
D) by randomly assigning participants to read a pamphlet claiming either that organic foods are more environmentally sustainable or that they are eaten by the majority of consumers, and then measuring participants' willingness to buy organic foods