The correct answer is B. A stanza structure
Step-by-step explanation:
A stanza refers to a group of verses or lines in a poem that are separated from each other by a blank line. On the other hand, a stanza structure refers to the way a stanza is built including the number of lines that are grouped in every stanza, the rhyme pattern of the stanza, which refers to the repetitions of similar sounds in different verses and the meter a stanza has that is the number of syllables in each sentence and if these syllables have accent or not. Thus, the pattern of stanzas from which a poem is built is called a stanza structure which is how each stanza is built and the features of it in terms of rhyme, meter, and the number of verses.