Which of the following can be serialized using Moshi?

Moshi is a modern JSON library for Android and Java, specifically designed for Android development and compatible with Kotlin. It excels in converting complex data structures, including those defined in Kotlin, into JSON and vice versa.

Complex Kotlin data structures typically involve various data types, including lists, maps, and user-defined classes (data classes, etc.). Moshi facilitates the serialization of these intricate structures by providing built-in support for type adapters and annotations. This capability allows developers to easily map the properties of a Kotlin class to JSON fields, ensuring that even nested structures are accurately translated.

While primitive data types and ISO standard date formats can indeed be serialized, they do not showcase the full extent of what Moshi can do with more complex types. For example, primitive data types are basic and straightforward, while ISO standard date formats are just a specification for representing dates—not inherently complex data structures like those encapsulated in Kotlin. Custom XML formats are outside the scope of what Moshi specializes in since Moshi is specifically designed for handling JSON serialization and deserialization, not XML.

Therefore, the ability of Moshi to handle complex Kotlin data structures makes it the most fitting choice in this context.