Fairy weather

Looking at plums to quench thirst means thinking of plums because of thirst. In fact, we can't get plums, just to comfort ourselves, and we can't explain the influence of the weather on human beings. Three visits to the thatched cottage tell the story of Liu Bei's thirst for talent and three invitations to Zhuge Liang to come out to help Shu Han, which can't explain the influence of the weather on human beings. Zhuge Liang used the east wind to set fire to warships, which can explain the influence of the weather on human beings. Cheng used snow as a metaphor for eager to learn and respect learned old people, but he could not explain the influence of the weather on human beings. Therefore, this question chooses C.