According to Census 2011, which of the following statements about Uttar Pradesh are correct ?

1. The district having lowest literacy rate is Shravasti.

2. The district having the highest sex-ratio is Deoria.

3. The district having the lowest density of population is Lalitpur.

4. On the basis of Nagar Nigam area population, the most populous city in the State is Kanpur.

Select the correct answer using the code given below:

U.P.P.C.S. (Mains) 2012