I would say mood or atmosphere because it doesn't directly say what the definition of it is in one sentence. Hope this helps :) <span />
The storyteller was telling the entertaining stories to people.
Answer:
In this story, the marigolds represent things which are important to people, that is all those things which matter to us, where we put our efforts and energy to make them more perfect and beautiful.
When the author says "I too have planted marigolds", she wants to express her compassion towards Miss Lottie, because she also has things which matter to her, the same as Miss Lottie.
In the end, the author wants to say that each of us has his/her own marigolds.
Answer: Influence The Reader
When the people seeing the ad read it, it makes them feel like they need to keep reading. The creators of the ad want the reader to become interested and continue reading, which they hope will lead to purchasers and buyers.