In question 3, the correct answer is A.
During her childhood, neither Lizabeth nor her brother or her friends understood why Miss Lottie tended to the marigolds so carefully.
After the afternoon when they stoned Miss Lottie and some of her marigolds, Lizbeth felt guilty and scared. The world made no sense to her. Her mother was no longer present, her father had crumbled. And in a childish tantrum, she went to Miss Lottie's house and destroyed her whole garden.
It was only after that, when she noticed Miss Lottie's expression on seeing her lost flowers that she knew why she had planted them. Lizbeth understood that the flowers represented hope for a woman that had nothing. A glimpse of beauty among the dirt. A place to direct whatever love and joy life had not taken from her.
In question 4, the correct answer is B.
At the beginning of the story, Lizabeth states that, whenever she thought of her hometown, she remembered the dust. But that she also remembered Miss Lottie's maridgolds.
After growing up, Lizbeth understood better the truth of her living situation as a child. She explains that, at the time, everyone around her were equally as poor, and therefore she did not have a real idea of their poverty. Now, she sees it with the perspective of an adult that knows the world and its conditions.
But, when thinking about that dreadful past, filled with dirt, and destroyed homes and families, she stills remembers the marigolds. The bright yellow flowers that brought beauty even to a wrecked hut as that of Miss Lottie's.