Answer:
A. The speaker is addressing the end of something.
Option A can be inferred from the title "Written at the Close of Spring" because the word "close" suggests an approaching end or conclusion. Therefore, it implies that the speaker is addressing the end of the season of spring. Option B cannot be inferred because simply enjoying the four seasons is not explicitly mentioned in the title. Option C is also incorrect as the title clearly states that the poem was written during the spring season, not in the fall.