Which of the following in Application Insights would you use for the following requirement? 
“Where do users churn the most from the application”

Answer options:

A.Funnels
B.Cohorts
C.Impact
D.Retention
E.User Flows

Answer – E 
You can use User Flows for this requirement 
The Microsoft documentation mentions the following 

Since this is clearly mentioned in the Microsoft documentation, all other options are incorrect 
For more information on Application Insights – User Flows, please refer to the following link 

https://docs.microsoft.com/en-us/azure/azure-monitor/app/usage-flows