Concept:An interlocking rhyme scheme of three-line stanzas is known as terza rima.
Explanation:A three-line stanza is called a tercet.
The pattern given is
ABA,
BCB,
CDC.
Here, the middle line of each tercet rhymes with the first and third lines of the following tercet.
This chain-like rhyme arrangement is the defining feature of terza rima.
A couplet has only two lines.
A haiku is a three-line poem without a fixed rhyme scheme.
A heroic couplet consists of two rhyming lines in iambic pentameter.
Therefore, the correct poetic form is terza rima.
Answer:C. terza rima