Answer:
D) a poem has stanzas while a story has paragraphs
Step-by-step explanation:
Neither a story or a poem has acts - only plays have acts. So each answer including "[blank] has acts..." can be ignored.
And as a writer of both stories and poetry myself, I can confirm that the blocks of text between line breaks in poems are called "stanzas", while that in stories are called "paragraphs".
I hope this helps