Final answer:
Details indicating Don Marcial's reverse aging in "Journey to the Seed" include the enlargement of furniture, emphasis on clocks and time, and mentions of his ill health; therefore, all of the above details are correct.
Step-by-step explanation:
In Alejo Carpentier's "Journey to the Seed," the detail that indicates Don Marcial is growing smaller and younger includes the furniture appearing to grow larger. As Don Marcial loses years, his surroundings seem to expand, emphasizing his reverse aging process. Additionally, the repeated emphasis on clocks and time helps to create a temporal framework that underscores the theme of time reversal or the passage of time. The mention that Don Marcial doesn't feel well adds a psychological dimension that corresponds with the physical transformations he is experiencing.
Therefore, the correct answer to the question would be '4) All of the above,' as each of the mentioned details collectively contributes to portraying the central phenomenon of Don Marcial's reverse aging throughout the narrative. The furniture's growth, focus on time, and Marcial's well-being all serve as literary devices to support the main theme.