Which of the following components is used to abstract technical details in integrating with third-party systems?

The selected answer is a suitable choice because an Anypoint Connector serves as a specialized component designed to facilitate interactions with third-party systems by abstracting their technical complexities. These connectors provide a simplified and standardized interface, enabling developers to integrate services without needing to understand the underlying protocols or data formats. By utilizing Anypoint Connectors, users can focus on their integration logic while relying on the connector to handle the heavy lifting of connecting with external services or APIs.

The other options serve different purposes in the MuleSoft ecosystem. An API Gateway is primarily used for managing API traffic, enforcing security policies, and providing analytics rather than directly abstracting integration details with third-party systems. MUnit is a testing framework for validating Mule applications, ensuring functionalities work as intended, but it does not play a role in integration abstraction. A Service Mesh is focused on managing service-to-service communications, particularly in microservices architectures, and doesn't specifically address integration with third-party systems. Consequently, Anypoint Connectors stand out as the correct answer for abstracting technical details in these integrations.