What steps do you take to troubleshoot the problem?

You are reviewing System Recommendations in the SAP Solution Manager and you notice that you have no recommendations for one of your technical systems .

What steps do you take to troubleshoot the problem? Note: There are 2 correct answers to this question.
A . Check the managed system configuration for the affected system.
B . Check that RFC destination S_<SID>CLNT<CLIENT NUMBER>_BACK is configured correctly
C . Check the connection between the SAP Solution Manager and the SAP Support Backbone.
D . Check that job SM: EXEC SERVICES is scheduled

Answer: A,B