It seems to have been assumed by the plaintiffs in their submissions that the question upon which the electors of the surrendering State should vote is the question which is posed by s. 123. That question is whether the electors approve of the act of the Parliament which increases, diminishes or alters the limits of that State. In order to make out the impact of s. 123 on s. 111 which they assert, the plaintiffs treat the surrender by the State to the Commonwealth of a part of the State as an alteration of the limits of that State within the meaning of s. 123. They further read the Commonwealth, where first appearing in s. 111, as referring, and referring exclusively, to the Parliament. They deny that the acceptance of the surrendered territory may validly be made by the Executive of the Commonwealth, the Governor-General in Council. Taking these two steps, the plaintiffs' concluding submission is that the acceptance of the surrender of the part of a State, being by legislative act on the part of the Commonwealth, is an exercise of the legislative power granted by s. 123 and to be valid must conform to the conditions imposed by that section on its exercise.