You need to route only blob-created events for files ending in '.jpg'. How is this configured most efficiently?

1. A Filter in the handler code
2. ✓ B Subject filtering with subjectEndsWith on the subscription (correct answer)
3. C A separate storage account
4. D An advanced filter on event time

Shortcut: subjectBeginsWith and subjectEndsWith are evaluated by Event Grid before delivery, avoiding both delivery cost and handler invocations for irrelevant events.