Answer:
C. Its stanzas all use the same pattern and number of lines.
The poetic form used in "One Art" by Elizabeth Bishop consists of villanelle stanzas. A villanelle is a 19-line poetic form with a specific pattern of repeated lines and rhymes. In "One Art," the villanelle structure contributes to the poem's theme of loss and the gradual acceptance of it.
Step-by-step explanation: