What should you create on iothub1 before you deploy Time Series Insights?

You plan to deploy Azure Time Series Insights.

What should you create on iothub1 before you deploy Time Series Insights?
A . a new message route
B . a new consumer group
C . a new shared access policy
D . an IP filter rule

Answer: B

Explanation:

Create a dedicated consumer group in the IoT hub for the Time Series Insights environment to consume from. Each Time Series Insights event source must have its own dedicated consumer group that isn’t shared with any other consumer. If multiple readers consume events from the same consumer group, all readers are likely to exhibit failures.

Reference: https://docs.microsoft.com/en-us/azure/time-series-insights/time-series-insights-how-to-add-an-event-source- iothub