The first step documented in Company.com’s HACMP test plan is to start the cluster manager on the normal service node and verify that HACMP daemons have started with the ’lssrc -g cluster" command.  What daemons MUST show as active in the ’lssrc -g cluster" command to have an operational cluster？（）  

• A、 clstrmgrES，clsmuxpdES
• B、 topsvcsd，grpsvcsd，exaixos
• C、 topsvcsd，grpsvcsd，clinfoES，grglsmd
• D、 clstrmgrES，clsmuxpdES，topsvcsd，grpsvcsd