請教8老師：公民子女爲父母申請移民，父母任一方提交485表時侯不必提交自己的結婚證？看了485 Instruction

只有要求下面的人提供結婚證明：

Marriage Certificate and Other Proof of Family Relationship：

If you are filing Form I-485 as the derivative applicant spouse of the principal applicant, you generally must submit a photocopy of your marriage certificate issued by the appropriate civil authority where the marriage took place......

能否拜托確定一下？另外父母除了提交自己的出生公證，還要提交擔保人（子女）的出生公證嗎？

謝謝！