Answer:
B is correct
Explanation:
The results of one's actions are not always immediately seen, and change happens in small increments.
The teacher was unhappy that the students did not seem to have improved lives in the short term, but when a former student comes back and says how his life was made better, the teacher realized that he did help the student after all.
A haiku is a poem that consists of three lines. The first and last line contain 5 syllables, while the middle line contains 7 syllables. A haiku poem rarely rhyme.