You have an Azure web app that is deployed by using Azure Pipelines. You need to ensure that when a new version of the app is deployed to production, you can ro...

You have an Azure web app that is deployed by using Azure Pipelines.
You need to ensure that when a new version of the app is deployed to production, you can roll back to the previous version. The solution must meet the following requirements:
• Minimize downtime during the deployment.
• Minimize the time it takes for the rollback.
What should you use?

A. a single web app and two deployment slots B. a single web app and two deployment pipelines C. two web apps and an Azure Standard Load Balancer D. two web apps and an Azure Traffic Manager instance