9 You will notice from these examples that the lines between ad formats can get blurred; some endorsement ads tell stories, and some story ads also depend on associations. However you categorize them, it does appear that most advertisements fall into a pre-determined type. While that may seem repetitive, it is a model that works. Out of five thousand ads a day, one of those is certain to catch your attention. What does the word sequence mean in paragraph 7 of the passage? a. timing b. series c. variation d. range