Thank you for your response Szahara Gita. I agree with you that brochure 3 is more persuasive.There, I just write my brief observation as a result and didn't add more specific observation one by one. In the brochure 3, not only the slogan that show persuasive language. But also the brochure contains persuasive language. You can read the brochure 3 (the content) that you will realize the persuasive part.