What are the challenges of advertising?

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Tags

1. #problematic
2. #advertising
3. #others
4. #survey
5. #faced
6. #considerably
7. #according
8. #measurement
9. #results
10. #reliably
11. #meaningful
12. #perceptions
13. #advertiser
14. #accurate
15. #potential
16. #challenges
17. #customers
18. #marketers
19. #reaching
20. #manner
21. #compelling