Which of the following Application Insights would you use for the following requirement? 
“Are page load times affecting a user’s decision in continuing to use the application.”

Answer options:

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

Answer – C 
You can use the Impact feature 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 – Impact, please refer to the following link- 

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