The correct answer is (c). The U.P. Re-organisation Act was signed by the President of India on 28th August, 2000. The Act provided for the formation of the State of Uttarakhand out of the hill districts of Uttar Pradesh. The State of Uttarakhand came into existence on 9th November, 2000.
Option (a) is incorrect because the U.P. Re-organisation Act was not signed on 1st August, 2000. The Act was signed on 28th August, 2000.
Option (b) is incorrect because the U.P. Re-organisation Act was not signed on 5th August, 2000. The Act was signed on 28th August, 2000.
Option (d) is incorrect because the U.P. Re-organisation Act was not signed on 30th August, 2000. The Act was signed on 28th August, 2000.