In which line does the speaker reflect on an unnamed youth resting in death?

The correct answer is found in "Elegy Written in a Country Churchyard," where the speaker reflects on the lives of the individuals buried in the churchyard, including a particular unnamed youth. This poem explores themes of mortality, remembrance, and the universality of death, making the contemplation of the youth's death poignant and universal. The speaker meditates on the significance of lives cut short, illustrating a deep sense of reflection on youth, potential, and the inevitable passage of time.

In contrast, "Ode on a Distant Prospect of Eton College" focuses more on nostalgia and the fleeting nature of youth as it relates to the experiences of school life rather than reflecting on death. "The Curfew Tolls" also lacks the specific focus on a deceased youth, and rather serves as a broader commentary on time and mortality. "To an Athlete Dying Young" does address the death of a young individual, but it emphasizes the nature of fame and the fleeting nature of success rather than a general reflection on an unnamed youth resting in death.