Your company currently hosts a web application in Azure. The company currently makes use of Azure pipelines for managing the build and release processes for the application. You have to configure the use of alerts in Azure Monitor for the release pipeline. You have to ensure that new releases are only deployed to production if the staging environment release meets the defined performance baseline criteria. 
Which of the following would you make use in the implementation?

Answer options:

A.An Azure Logic App
B.A trigger
C.A gate
D.An Azure Function

Answer – C 
You would use a gate for this requirement 
The Microsoft documentation mentions the following 

Since this is a clear option from the documentation given, all other options are incorrect 
For more information on gates in Azure DevOps , please visit the following URL 

https://docs.microsoft.com/en-us/azure/devops/pipelines/release/approvals/gates?view=azure-devops