To categorize the elements of each type of poem, we can place them as follows:
Villanelle
- all four-line stanzas
- second line of each stanza rhymes
Ballad
- mostly three-line stanzas
- rhyme scheme of ABCB
This arrangement correctly identifies the elements based on the characteristics of a Villanelle, which contains repeated lines and a specific structure, and a Ballad, which often features quatrains with an ABCB rhyme scheme.