Radio buttons allow you to display all answers for a question.  Radio Buttons are nice if the answer to a question is short, this way they do not take up a lot of space.  The Radio Button is often teamed up with the Text object.  See below for an example.

 

 

The options for the Radio Buttons can be found under the Form Settings Panel on the right of the screen.   Label - This is the text that appears next to a button.   Radio Group - This allows you to group multiple Radio Buttons together under one question.   Checked - This is the same as the Checked option under Check Box.  Selecting this option will cause the radio button to be selected automatically.   Font Face - Allows you to change the font for this particular Radio Button. You have access to all the Fonts on your computer.   Font Color -  Changes the color of the font displayed for the Label next to the Radio Button.   Font Size - This changes the font size displayed for the Label next to the Radio Button.  Small, Medium and Large   Font Style - Changes the style of the Label displayed next to the Radio Button. Regular, Bold, Italic or Bold and Italic