The correct option is D It united Kannada speakers across Madras, Mysore, Bombay and Hyderabad.
One of the first challenges that India faced after Independence was the demand for formation of lingustic states. The speakers of different languages demanded states by organising campaigns. One such campaign was for Samyukta Karnataka. It united Kannada speakers across Madras, Mysore, Bombay and Hyderabad.