With Live Query statistics, you get real-time information and insights on the queries as they are running. This allows you to debugging query performance issues, such as long-running queries, and queries that run indefinitely and never finish.
Option B is incorrect since this will only give you what could be the plan that is going to be used Option C is incorrect since this will not give live statistics that can show which query is causing an issue Option D is incorrect since this will not give the server stats that will show the performance of the queries
https://docs.microsoft.com/en-us/sql/relational-databases/performance/query-profiling- infrastructure?view=sql-server-ver15