Final answer:
Margot conveys a sense of isolation and loneliness in her poem, as reflected in the transient imagery of a flower blooming for just one hour and the setting of a quiet, rainy classroom. The correct option that conveys Margot's feelings in the sentence is D) Isolation and loneliness.
Step-by-step explanation:
The feelings Margot expresses in the sentence from the story are indicative of isolation and loneliness. The imagery of the sun being likened to a 'flower, that blooms for just one hour' evokes a sense of fleeting beauty and transience, which perhaps mirrors Margot's feelings of being temporary or overlooked.
The context in which this poem is read - 'in a quiet voice in the still classroom while the rain was falling outside' - further emphasizes the solitude and reinforces the emotional distance Margot feels from her peers.
The correct option that conveys Margot's feelings in the sentence is D) Isolation and loneliness.