The conclusion that makes the most sense based on the context of the subgenres is:
Prose poetry is written in complete sentences, while lyric poetry is not.
Prose poetry typically takes on a more narrative form, using sentences and paragraphs, while lyric poetry often utilizes shorter lines and stanzas that do not conform to complete sentences. However, it is important to note that both forms can employ imagery and figurative language. The other options are not accurate representations of these poetic forms.