Cleanz inc., a toiletries manufacturing firm, has launched a new range of organic sanitizing wipes. it wants to test its consumers' reactions to this new product in an economical way. therefore, cleanz sends out flyers to a few selected members of the target market advertising several of its products along with the new product. besides this, it also takes the members to a mock shop and monitors their shopping behavior. in this scenario, cleanz is using _____.