Be sure and read the entire failing message and not just the first line.
The full message is;
Inside the form element, I can select a field from one or more groups of radio buttons. Each group should be grouped using the name attribute. Each radio button must have a value attribute.
All your radio-buttons must have a value attribute : expected 3 to equal 0
AssertionError: All your radio-buttons must have a value attribute : expected 3 to equal 0
If you reference the lesson Use the value attribute with Radio Buttons and Checkboxes you may be able to answer your own question.
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