The correct answer is: a) Regional disparities between Andhra and Telangana.
The Jai Andhra movement was a political movement that sought to create a separate state of Andhra Pradesh out of the Telugu-speaking regions of Andhra and Telangana. The movement was led by Potti Sriramulu, who went on a hunger strike to death in 1952 to demand the creation of the new state. The movement was successful, and Andhra Pradesh was created in 1956.
The main reason for the Jai Andhra movement was the regional disparities between Andhra and Telangana. Andhra was a relatively prosperous region, while Telangana was a relatively poor region. This disparity was due to a number of factors, including the fact that Andhra had a longer history of contact with the British, and that it was home to a number of important cities, such as Hyderabad.
The regional disparities led to a feeling of resentment among the people of Telangana. They felt that they were being discriminated against, and that they were not getting their fair share of the resources of the state. This resentment led to the Jai Andhra movement.
The Jai Andhra movement was a significant event in the history of Andhra Pradesh. It led to the creation of a new state, and it helped to raise awareness of the problems of regional disparities. The movement also helped to strengthen the Telugu identity.
The other options are not correct because they were not the main reasons for the Jai Andhra movement.
Option b) The imposition of Hindi as the national language was not a major concern of the Jai Andhra movement. The movement was focused on the regional disparities between Andhra and Telangana, and it did not have a strong opinion on the issue of Hindi.
Option c) Border disputes with neighboring states were not a major concern of the Jai Andhra movement. The movement was focused on the regional disparities between Andhra and Telangana, and it did not have any border disputes with neighboring states.
Option d) Centralization of power was not a major concern of the Jai Andhra movement. The movement was focused on the regional disparities between Andhra and Telangana, and it did not have any concerns about the centralization of power.