about form I-539 -- whose signature should be put in part 5?

３歲孩子appling B2 to H4 thansfer,in form I-539 part 5 Applicant's statement and signature, whose signature should be put in? can it be parents' signature?

所有跟帖： 

• your signature and indicate mother or father. -allforGC- ♀ (0 bytes) () 05/18/2009 postreply 07:56:17

• 回複：your signature and indicate mother or father. -來自天山腳下- ♀ (22 bytes) () 05/18/2009 postreply 11:46:12

• 回複：about form I-539 -- whose signature should be put in part 5? -pjiang- ♀ (180 bytes) () 05/18/2009 postreply 13:40:06