A. Salesforce flows

I disagree with the answer provided. I believe it's the Flows, because:
- Flows can subscribe to Data Cloud problem/monitoring events (Platform Events, problem records)
- Can send Slack notifications (Slack invocable actions), send email alerts, and create Cases.
- Flows can also call webhooks → integrate with a monitoring system/dashboard.
And Salesforce explicitly recommends to “(...) control Data Cloud event notifications using Flows.”
Whereas Data actions fire on data-level events/insights, not system ingestion failures! Although we could manage to do so with a data action, it's rather an indirect and fragile strategy compared with Flows.