Final answer:
In 'The Masque of the Red Death,' the ebony clock is the detail that suggests the revelers will not live long, as it symbolizes the inevitable and inescapable nature of death. Option 4.
Step-by-step explanation:
The question refers to the details in Edgar Allan Poe's short story "The Masque of the Red Death" that foreshadow the eventual fate of the revelers. Among the provided options, the ebony clock is the correct answer.
The striking of the clock brings a sense of doom and reminds the characters and readers of the passage of time and the presence of death, even during the midst of celebration. Whenever the clock chimes, the revelers are disturbed and become aware of their mortality.
It symbolizes the inescapable nature of death and suggests that the party-goers' time is running out. Option 4.