In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement". There's nothing wrong with (having to) a different opinion.
1. The powers to legislate with respect to any matter not enumerated in any of the three lists are mentioned as residuary powers. Which of the following is empowered to determine finally as to whether or not a particular matter falls in this category