Which of the following statements about the linguistic reorganization of states in India are correct?

1. The States Reorganization Act of 1956 was primarily based on linguistic lines, following the recommendations of the States Reorganization Commission.
2. Nehru initially opposed linguistic reorganization, fearing it might lead to divisive regionalism.
3. The reorganization successfully eliminated regionalism, strengthening Indian national unity.
4. Andhra Pradesh was the first state to be created on a linguistic basis, setting a precedent for others.

Select the correct option