The correct option is D The Boosa incident of Basavalingappa.
The Boosa incident of Basavalingappa became a turning point for the Dalit movements, when Basavalingappa, a minister of Karnataka remarked crudely on Kannada literature in a ceremony at Mysore. Agitations started against this statement. Finally, Basavalingappa had to tender his resignation. This incident galvanized the Dalit identity and nourished its growth.