Your company is developing an e-commerce Azure App Service Web App to support hundreds of restaurant locations around the world. You are designing the messaging solution architecture to support the e-commerce transactions and messages.
The e-commerce application has the following features and requirements:

You need to design a solution for the Inventory Distribution feature.
Which Azure service should you use?
Correct Answer: B
Explanation/Reference:
Explanation:
Service Bus is intended for traditional enterprise applications. These enterprise applications require transactions, ordering, duplicate detection, and instantaneous consistency. Service Bus enables cloud- native applications to provide reliable state transition management for business processes.
Incorrect Answers:
A: Azure Event Hubs is a big data pipeline. It facilitates the capture, retention, and replay of telemetry and event stream data.
C: Event Grid is an eventing backplane that enables event-driven, reactive programming.
D: The Azure Relay service enables you to securely expose services that run in your corporate network to the public cloud.
References:
https://docs.microsoft.com/en-us/azure/event-grid/compare-messaging-services