The correct answer is option 3, Uttar Pradesh. Uttar Pradesh had the highest production of wheat in the year 2012-13. It is important to note that wheat is a major crop in India, and its production varies across different states. In this particular year, Uttar Pradesh topped the list in terms of wheat production.

Option 1, West Bengal, and option 2, Tamil Nadu, are incorrect because they did not have the highest wheat production in that year.

Option 4, Haryana, is also incorrect because even though it is known for its agricultural productivity, it did not have the highest wheat production in 2012-13.

Overall, the answer highlights how Uttar Pradesh outperformed other states in terms of wheat production during that specific year.