AskTeacher 863211- Green Card Renewal question

Hi Teacher 863211,

Happy Chinese New Year!

I want  to renew my mom green card which expires in the summer this year. When I tried to fill out the application online, it asked that " do you need preparer to help you prepare the form...? What's your preparer's organization or business? " I thought I was my mom's preparer and interpreter; however, I am not sure how to answer the preparer's business or organization question. So I am thinking maybe I should only state  that I am her interpreter? Thanks for your advice!