Mars,Inc ,The Makers of M&M's Candy,was Recently Running Television Ads

Multiple Choice

Mars,Inc. ,the makers of M&M's candy,was recently running television ads featuring the colorful nature of its candy with the tagline,"Chocolate is better in color." What type of research would be used to evaluate these commercials as the campaign is running?

A) development research
B) tracking study
C) post-testing research
D) concept testing
E) semiotic testing