Answer:
A. A poetic form that repeats three lines at least three times throughout the poem .
Step-by-step explanation:
A Villanelle is a form of poetry where the poem has a total of 19 lines, with a three-lined tercet with 5 stanzas followed by a quatrain in the end. The lines in the poem have a regular rhyme repetition.
In this type of poetry, the pattern of rhyming is different. It repeats the whole lines of some specific lines, taking it along in the next succeeding stanzas. The first line of the first stanza is repeated in the third line of the second stanza and the fourth stanza while the third line of the first stanza is repeated in the third line of the third stanza and the fifth stanza.
Supposing the lines are numbered as
a/b/c/d/e/f/g/h/i/j/k/l/m/n/o,
the lines a/f/l will be the same while the lines c/i/o will be the same. This shows that there is a repetition of three lines at least three times throughout the whole poem.