What type of message structure do the XML Bridges Utilities support?

The XML Bridges Utilities specifically support XML message structures, making this the correct answer. XML, or eXtensible Markup Language, is a widely used format for encoding documents in a way that is both human-readable and machine-readable, which is essential in data interchange between different systems. The tools provided by XML Bridges are designed to facilitate the handling, transformation, and routing of data represented in XML format.

This capability is important because XML serves as a common format for APIs and data integration processes, allowing for efficient data sharing and communication between disparate systems and applications. Understanding this structure is crucial for anyone working with data that flows in and out of these utilities, as it ensures compatibility and proper handling of the messages being processed. Other options like plain text, JSON, and binary formats are not the primary focus of XML Bridges Utilities, emphasizing the importance of XML message structures in this context.