What tool supports Salesforce developers in building and testing AI agents within Salesforce DX?

The correct choice is Agentforce DX, which is specifically designed for Salesforce developers to build, test, and deploy AI agents within the Salesforce DX environment. This tool facilitates the integration of AI capabilities with Salesforce applications by providing a streamlined workflow, robust APIs, and pre-built components tailored for AI functionalities.

Additionally, Agentforce DX enables developers to leverage the Salesforce ecosystem effectively, ensuring that they can manage code and collaborate seamlessly throughout the development lifecycle. The emphasis on testing within this framework ensures that AI agents perform optimally before being deployed in real-world scenarios, which is critical for maintaining the quality and reliability of AI solutions.

In contrast, the other options do not focus directly on the specific functionalities that Agentforce DX offers related to AI development and testing within Salesforce DX, which makes them less suitable for this particular purpose.