Exploring the Meaning of "Into each life some rain must fall"

Explanation:

A rainy day is a poem written in three stanzas of five lines each. The speaker compares the rainy day with his own feelings and past situations, and the excerpt belongs to the last stanza.

Letter A is the correct option because of the phrase "some rain must fall," understanding the rain as a metaphor of unhappiness, which is not totally bad as long as it does not turn into something that happens every day. Also, as we can see in the next line, "the sun is still shining," which could be understood as part of a brighter future and coming back to happiness to keep balance.