Forms - Radio Button Values

If I have added a radio button widget to a PDF form, how do I specify the value of the widget? I have a requirement to set a specific option programmatically. For example, a while ago with a trial of Acrobat, I created a form with a group of radio buttons, all of which are named MaritalStatus. There are radio buttons for each of the following values:


Then, based upon user input received from another application, I programmatically select the correct radio option based upon the value. How can I set the value in PDF Architect?