Which of the following is a type of marketing that includes telemarketing, postcards, and other user-specific products? Humor Database Direct-response social media Which of the following is considered a form of marketing that includes postcards, calendars, letters, price lists, and menus? Direct Database Humor social-media Which of the types of marketing started out as a special form of advertising and marketing offered by correspondence schools and book publishers as well as companies Direct Database Humor Social media Which of the following social media has the highest engagement rate? Facebook Twitter YouTube LinkedIn