The stamp and its caption provide support and enhance the topic and narrative of the photo essay.
Step-by-step explanation:
The stamp and its caption relate to the essay by providing visual and textual support to the topic and narrative of the photo essay. The caption helps provide context and information about each event depicted in the photos, while the stamp visually enhances the layout and transitions between each picture and caption. Together, they contribute to the overall effectiveness and understanding of the essay.