Final answer:
A flashback is not directly identified among the provided options, as none of them are described as interrupting the current narrative to describe past events. However, a flashback typically involves characters reliving or recounting past events within the current narrative.
Step-by-step explanation:
In the context of the story "disbelief," an example of a flashback is not explicitly provided among the options listed (A, B, C, D). However, a flashback in literature is a narrative technique that allows a writer to present past events during current events to provide background or context to the story. Based on the provided text, a flashback might be present when past events are recounted through a character's memory, such as the protagonist recalling the details of the Atlantic & Eastern case after seeing the headline in the newspaper. If any of these options (A, B, C, D) included a scene where the current narrative is interrupted by a past event that is being relived or recounted by a character, that would be an example of a flashback.