Time's fool is referring to any concept that becomes lost in time. Love is an intangible and uncontrollable feeling, yet is felt instantly and does not waste time to be present.
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.)
Answer: A. The real tree is more detailed and smells fresher than the plastic trees that line the streets.
