孩子申请英国护照如何填写

请问有谁知道，父母亲是中国护照，孩子10岁申请英国护照。
可有谁知道第4题是怎么填的，还是不填
还有孩子爷爷奶奶，外公外婆是否可以不填。
眞晕呀！到底要去向谁问呢？今天去了邮局，他也晕晕的，忘了问这问题。 只是问需要带什么原件。

4. if both parents named below were born after 21st Dec 1982 or were born abroad, we will also need the full name, town country date of birth and date of marriage of your grandparents for details of your parents claim to Brithish nationality.

就如实填呗，地儿不够就另附一张纸。

可以不填， 两孩子都没填

爷奶信息不填

填呗。有啥不好意思的？