Where did Snap's 13 million new users come from? Snapchat's redesign of its user interface has grown its daily active users by 13 million to 203 million. Snapchat is now used by 75 percent of 13- to 34-year-old people in the United States, which is more than Facebook or Instagram. Source: The Motley Fool, July 24, 2019 How does Snapchat help firms in monopolistic competition to maximize profit? Question content area bottom Part 1 Snapchat help firms in monopolistic competition to maximize profit by _______. A. increasing advertising and decreasing total cost B. decreasing marginal cost and increasing the quantity bought and sold through advertising C. lowering total fixed cost and making demand less elastic D. advertising new differentiated products to a well-defined group of young smartphone users