Markup with objects in DC Standard?

Solution found.  I finally got to work with him in person.  The tools he was looking for were under the Comment section.  He found the line tools there.

thanks for everyone's input.

He doesn't need the Pro version. The free Acrobat Reader can also add markups.

May be that the specific document is protected. He should try another document.

This functionality is available in Pro and Standard - and even in the free Adobe Reader. However, the document you are trying to modify needs to allow changes. If the document is protected with security settings that do not allow comments/annotations to be added, then the tools will be grayed out. You can find out if a document allows changes by bringing up the document properties (Ctrl-D or Cmd-D), then go to the "Security" tab. If any restrictions are in place, they would be listed here.

It is also possible that the document in question is a document that was created in LiveCycle Designer. In this case, the document cannot be modified in Acrobat (besides filling in form fields), regardless of the security settings.