In the story “The Gift of the Magi,” which of the following is an example of allusion?

In the story “The Gift of the Magi,” which of the following is an example of allusion? (1 point)

a. the description of Della’s hair as a “brown cascade”
b. the comparison between Della and the Queen of Sheba
c. the apparent compassion for Della’s and Jim’s economic struggle
d. the discovery that the protagonists sold their most prized possessions