Lines 1 and 4 rhyme, and lines 2 and 3 rhyme. The scheme is:

1. A rhyme scheme assigns one letter to each rhyming sound. 2. Line 1 gets A. 3. Lines 2 and 3 rhyme with each other and not with line 1, so both get B. 4. Line 4 rhymes with line 1, so it gets A. 5. Written in order, the letters are A, B, B, A. 6. So the scheme is ABBA. **Why the other options fail:** - ABAB would make lines 1 and 3 rhyme. - AABB would make lines 1 and 2 rhyme. - ABCB leaves lines 1, 2 and 3 with no rhyme and only lines 2 and 4 rhyming. _Source: Wikipedia, "Rhyme scheme", section "introduction" (revision 1378621146)_