The plot is about how middle schoolers evolve. The setting of the school shows the everyday life of the main middle schooler going through the struggles of being a preteen and the preparation for high school. (If this doesn’t help google the plot of the story and think about the setting and the the relation.)
I think tha answer is C not sure doe
The correct answer should be A. Each
That is because "each" is used here to show that every single flower was used, which in turn means it's an adjective that describes what the flowers are like, that is, manner and and quantity.