Introduction:
Umberto's taste for narration was satisfied by novels. Novels provide a comprehensive narrative experience that engages the reader through a combination of storytelling, character development, and thematic exploration.

Explanation:
1. Stories: While stories can also be engaging and entertaining, they are typically shorter and may not provide the depth and complexity that Umberto desired. Novels, on the other hand, allow for a more in-depth exploration of characters, plotlines, and themes.

2. Children's works: Children's works are often simplified and cater to a younger audience. They may not offer the same level of intellectual stimulation and narrative complexity that Umberto sought. Novels, on the other hand, are generally written for a more mature audience and can delve into deeper themes and ideas.

3. Interviews: Interviews are typically focused on gathering information or insights from a specific individual. While they can be informative and provide valuable perspectives, they are not necessarily structured as narratives. Umberto may have desired a more cohesive and immersive storytelling experience that novels provide.

4. Novels: Novels are a form of long-form storytelling that can captivate readers with their intricate plots, well-developed characters, and exploration of complex themes. They allow for a deeper immersion into the narrative world and can satisfy Umberto's taste for narration by providing a comprehensive and engaging reading experience.

Conclusion:
Out of the given options, novels best satisfy Umberto's taste for narration. They offer a more in-depth and immersive narrative experience compared to stories, children's works, and interviews. Novels provide an opportunity to explore complex themes and characters, making them a preferred choice for individuals seeking a rich and engaging storytelling experience.