To answer this question, you would simply provide the name of your school in Welsh. For example:
* "Ysgol [Name of school]" (e.g., "Ysgol y Bont" for "Bont School")
If you don't know the Welsh name of your school, you could say:
* "Dydw i ddim yn siŵr" (I'm not sure).
* "Does gen i ddim ysgol" (I don't have a school).