what is a sestina?

Answer:
Answer down below
Explanation:
a poem with six stanzas of six lines and a final triplet, all stanzas having the same six words at the line-ends in six different sequences that follow a fixed pattern, and with all six words appearing in the closing three-line envoi.
Answer: C.
A sestina is a fixed form in poetry that has six stanzas of six lines each followed by a three-line stanza; each line ends with one of six words in a standard repetition. Have a great day!!