Final answer:
The structure of the poem is irregular, with varying line lengths and no consistent rhyme scheme.
Step-by-step explanation:
The structure of the poem is irregular, with varying line lengths and no consistent rhyme scheme. The poem does not divide into stanzas with equal numbers of lines (option A) and does not punctuate the end of most lines to suggest different types of pauses (option C). It also does not use periods and capitalization within the lines to indicate scene shifts (option D). Therefore, the best answer choice is B: The poem has an irregular meter and an irregular rhyme scheme.