Correct Answer of the above question is : -b) Analytics tool that answers vital questions about the health of your apps
Xamarin insight is a tool that allowed the developers to identify and track the issue with the apps in real-time. We can also use this for the monitoring system to report the problems. Xamarin introduced Xamarin Insight in October 2014. However, it was closed on March 31, 2016. In today's time, developers can believe in Visual Studio App Center for the same functionality that is provided by the Xamarin Insights.