The correct answer is A) Formation of unified Karnataka state.
Karnataka Rajyotsava is a state holiday in Karnataka, India, celebrated on November 1 to commemorate the formation of the state on that day in 1956. The day is marked with a variety of cultural events, including parades, concerts, and speeches.
Option B is incorrect because the Anglo-Mysore wars were a series of conflicts between the British East India Company and the Kingdom of Mysore that took place from 1767 to 1799. The wars ended with the defeat of Tipu Sultan, the ruler of Mysore, and the annexation of his kingdom by the British.
Option C is incorrect because there is no prominent historical figure who was born on November 1.
Option D is incorrect because Karnataka Rajyotsava is not a harvest festival.