On my mind, there is a memory
A moment in time, a story
of friends.

On my desk, there is a frame
A picture with the one named
My friend.

On my row, there is a chair
A classmate no longer there,
My friend.

On the map, there is a state
An empty distance which separates
My friend
and
me.

How does the poem's rhyme scheme most clearly contribute to the meaning of the poem?

A. The unrhymed lines in each stanza emphasize the main idea of the poem: missing a friend who has moved away.
B. The rhymed lines in each stanza imitate the childhood rhymes that friends recite with one another.
C. The unrhymed lines in each stanza emphasize the theme of the poem: being thankful for best friends.
D. The rhymed lines in each stanza create a songlike melody that reflects the speaker's joy.