Radio buttons (option buttons) group

While the document is in Design Mode, select an option button and click the Properties button. In the Properties dialog, assign a value to the GroupName property -- for example, use Q1 as the value for question 1, Q2 for question 2, etc. Put the same value in the GroupName for all three option buttons in the same question.

Option buttons that share the same GroupName behave as a group; clicking any one of them puts the black dot in that button and removes it from any other button. Each group is independent of all other groups.

Once you've created one group, you can select the three option buttons, press Alt+F3, and save the selection as a building block. The Gallery setting in the dialog determines what kind of building block it will be, and thus which gallery (if any) it will appear in. Good choices would be either AutoText or Quick Parts. When you insert the building block, you still will have to visit the Properties dialog of each option button and change the GroupName to make them a separate group.