我这个questionnaire该怎么填呢？

因为做腹腔镜手术造成气胸。现在保险公司来了封问卷调查，需在15天内回答，否则也许会拒付。
1， Auto/Motorcycle Accident    2,Work/ Industrial Accident   3,Other (slip &fall) Accident  4, No Accident  

If this accident was not Auto/Motorcy or Workers' Compensation related, but there is another party that was liable, fill out Section 1,2 and 4.
If there is no other party liable for your injury, check no accident and fill out section 1.

我该怎么填？