Which of the following statements about linguistic states in India are correct?
1. They were first implemented based on the recommendations of the States Reorganisation Commission in 1956
2. The creation of linguistic states weakened India's unity
3. Language-based divisions were inspired by the administrative structure of the Indian National Congress in the 1920s
4. The first linguistic state to be formed was Andhra Pradesh
1
1, 2, and 3 only
2
2, 3, and 4 only
3
1, 3, and 4 only
4
1, 2, 3, and 4