The correct answer is (c) 16.16.
Uttar Pradesh is the most populous state in India, with a population of 200,395,569 as of 2011. This is equivalent to 16.16% of India’s total population of 1,210,193,422.
The other options are incorrect. Option (a) is 14.2%, which is the percentage of population of Uttar Pradesh to India’s population as per Census 2001. Option (b) is 15.5%, which is the percentage of population of Uttar Pradesh to India’s population as per Census 1991. Option (d) is 18.2%, which is the percentage of population of Uttar Pradesh to India’s population as per Census 1981.