Citizenship Application Tax Return Clarification

[mark7780]

Hello, hope you guys are doing well.
On the citizenship application, there's a box that says 'Required to file' on tax return questionnaire. What does this mean? I do meet 3 out of 5 year tax return obligation. But I'm not sure should I check Yes or No on Required to file question.
Looking to get some clarification on this. Your help is greatly appreciated. Thanks folks.