That could be any sort of a standing committee, the people who would make the presentation, generally the sponsors of the petition itself and obviously not the signators.
You know, if I go on the Internet today, there are literally dozens, if not hundreds, of petitions out there. From what I understand, we're looking at something in which x, being the number of members of Parliament who would have to sponsor the petition, the ideal situation is your office would be provided the proposal: here is the wording of the petition and this is what we would like to do. It would then be approved, or changed and eventually approved, and then it would go on the Internet.
Would the hundreds of others be completely irrelevant to the debate, no matter the number of signatures they would acquire?