A security engineer is configuring Copilot for Security to assist with threat hunting for AI-targeted attacks. The engineer wants to use Copilot to run a custom KQL query against Microsoft Sentinel and then analyze the results. Which Copilot for Security capability enables this workflow?

A is correct because the Microsoft Sentinel plugin in Copilot for Security enables analysts to run KQL queries against their Sentinel workspace directly from the Copilot for Security standalone portal. Copilot can help write the KQL, execute it through the plugin, and then analyze and interpret the results in natural language, accelerating threat hunting workflows. B is incorrect because while Copilot for Security has APIs for integration, the direct KQL execution capability is provided through the Sentinel plugin, not a separate API connector for query submission. C is incorrect because while Microsoft Sentinel does have embedded Copilot experiences, the specific workflow of running arbitrary hunting KQL queries and getting AI analysis is most fully supported in the standalone Copilot for Security portal with the Sentinel plugin. D is incorrect because Microsoft Defender XDR advanced hunting is a separate KQL interface for Defender data; the Sentinel plugin specifically targets Sentinel workspace data.