You are building an industrial IoT solution where using several IoT hubs, you collect telemetry data from several field sensors. The ingested data must be distributed through a Service Bus, so you need to establish a route to forward messages from your IoT hubs to a Service Bus topic. Besides, each message needs to be stamped with the name of the IoT hub ($iothubname) which it originates from, in order to enable further classification. You decide to use IoT hub’s message routing with enrichment options. 
Does it help you to achieve your goal?

Answer options:

A.Yes
B.No

Correct Answer: A
Option A is CORRECT because, with IoT hub’s routing capability, you can forward incoming messages to other Azure services as custom endpoints, like Blob Storage or Service Bus. Enrichment of message also can be applied as part of the routing.
Option B is incorrect Azure Service Bus (both topics and queues) are possible custom endpoints for IoT Hub, hence they are valid targets in message routing.
References: 

https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-endpoints#custom-endpoints
https://docs.microsoft.com/en-us/azure/iot-hub/tutorial-message-enrichments