How should a consultant design the orchestration for Mobile service?

Universal containers (UC) is a communication service provider using commination cloud. The provisioning system that activates the mobile service can take up to 10 minutes.

How should a consultant design the orchestration for Mobile service?
A . Configure an Autotask Orchestration Item to send to platform event, the enterprise Service Bus(ESB) will listen for the platform event and do a callback to the asynchronous Callback URL
B . Configure a callout Orchestration item using the asynchronous system interface to do a callout, and have the enterprise service bus (ESB) to do a callback to the asynchronous call back URL.
C . Configure a Callout Orchestration item using the enhanced system interface
D . Configure a callout orchestration item using the default system interface to do a callout, configure a Push Event and have enterprise service Bus (ESB) do a callback to complete the push Event.

Answer: B

Explanation:

If the asynchronous response for the event is short, you can use the same callout to wait for the response. However, if the callout takes a long time, such as days, then it is best to use a push event to receive the response.