Which trigger should be used when an HTTP endpoint must respond immediately but the work takes minutes?

1. A A synchronous HTTP trigger doing all the work
2. ✓ B An HTTP trigger that starts a Durable orchestration and returns a 202 with a status URL (correct answer)
3. C A Timer trigger
4. D A Blob trigger

Shortcut: The async HTTP API pattern returns 202 Accepted with statusQueryGetUri immediately, letting the client poll while the orchestration runs in the background.