re: March Public Update for SharePoint 2013 available and mandatory

hi,

little confusion on this para

"Be aware that the SharePoint Server 2013 PU contains the SharePoint Foundation PU. And the Project Server 2013 PU contains SharePoint Server PU and SharePoint Foundation PU."

I have sharepoint 2013 with Project server, so should i pick SharePoint Server 2013 PU  or  Project Server 2013 PU

pls guide thx