Read the following stanza from "The Snowball
Hillside functioned as a team to build a mighty wall.
It grew so tall and powerful that it amazed them all.
Mt. Pleasant students were concerned—their fort had many cracks,
So secret windows were prepared for surprise attacks.
What is the rhyme scheme of the poem?
A.AABB
B.ABAB
C.ABBA
D.ABCA