Another word for allusion is <span>B. reference.
</span>To make an allusion to someone or something means to make a reference to them. An allusion is <span>an expression designed to call something to mind without mentioning it explicitly; an indirect or passing reference.</span>
A, because short stories are usually meant for the purpose of morals, and C is not a characteristic of a short story due to the fact that those are actually reserved for well, longer stories, D does not fit as diagrams are almost literally never used in short stories besides the cover, and rhymed couplets are poem-related.