Final answer:
The main commonality of the two victims from "The Cask of Amontillado" and the other story likely lies in themes of betrayal, entrapment, and demise, though it's not possible to fully determine without knowing the specifics of the second story.
Step-by-step explanation:
The student's question pertains to the commonalities between two victims in "The Cask of Amontillado" by Edgar Allan Poe and another unnamed story, which could be referring to a backstory or a comparison with another work. It is important to note that within Poe's "The Cask of Amontillado", there is only one victim, Fortunato, who is led by the narrator, Montresor, into the catacombs under the guise of tasting a rare wine and ultimately sealed inside a wall as an act of revenge. The commonality of victims in these genres often includes motifs of betrayal, entrapment, and demise at the hands of the tale's antagonist, aspects that "The Cask of Amontillado" exemplifies.