Concept:Compare the semi-urban pass percentage for each year using appearedpassed​×100.Explanation:Calculate the percentage for each year.2009: 78942513​×100≈31.83%2010: 85622933​×100≈34.26%2011: 81392468​×100≈30.30%2012: 85293528​×100≈41.36%Compare all the obtained percentages.The least value is approximately 30.30%, which corresponds to the year 2011.Answer:D. 2011