Which statement is true regarding modal PCFs?

The statement that modal PCFs always come in sets is accurate because modal PCFs are designed to function as part of a structured collection of PCFs, which allows for consistent behavior and UI integration across various components of the Guidewire platform. This set-based approach enables developers to ensure that different modal PCFs can share properties, functionalities, and styles, facilitating cohesive user experiences and easier maintenance.

Modal PCFs, by definition, cater to specific interactions that typically require a consistent presentation and behavior pattern. Such a structure allows developers to manage and navigate multiple component interactions effectively. While there may be instances where a modal is designed without any other accompanying component, the standard practice and intended use within the Guidewire Framework imply that they are part of a set, reinforcing modular design principles.

It's essential to understand that modal PCFs are utilized in contexts where they can interact seamlessly with other PCFs, hence the importance of being part of a set. This design approach enhances the application's flexibility and adaptability, as sets can be adjusted or expanded as needed based on evolving business requirements.