Hindustani Academy, which was founded for the protection and development ‘if Indian Languages, is located in

Agra
Allahabad
Lucknow
Varanasi

The correct answer is (c) Lucknow.

The Hindustani Academy was founded in 1910 in Lucknow, India. It is a non-profit organization that works to promote the use and development of the Hindustani language. The academy offers a variety of programs and services, including language classes, workshops, and conferences. It also publishes a number of books and journals on the Hindustani language.

Agra is a city in the northern Indian state of Uttar Pradesh. It is the capital of Agra district and the Agra division. Agra is a major tourist destination, famous for its many historical monuments, including the Taj Mahal.

Allahabad is a city in the northern Indian state of Uttar Pradesh. It is the administrative headquarters of Allahabad district and the Allahabad division. Allahabad is a major religious and cultural center, and is home to a number of important Hindu and Muslim temples.

Lucknow is a city in the northern Indian state of Uttar Pradesh. It is the capital of Lucknow district and the Lucknow division. Lucknow is a major cultural and educational center, and is home to a number of universities and colleges.

Varanasi is a city in the northern Indian state of Uttar Pradesh. It is the administrative headquarters of Varanasi district and the Varanasi division. Varanasi is a major Hindu pilgrimage center, and is home to a number of important Hindu temples.