The primary law enforcement agency in Karnataka:

Central Reserve Police Force
Border Security Force
Karnataka State Police
Indian Army

The correct answer is C) Karnataka State Police.

The Karnataka State Police is the primary law enforcement agency in the Indian state of Karnataka. It is headed by the Director General of Police (DGP), who is appointed by the state government. The DGP is assisted by a number of Additional Directors General of Police (ADGPs), who are responsible for different branches of the police force. The Karnataka State Police has a strength of over 1 lakh personnel, who are deployed in different parts of the state to maintain law and order. The police force is also responsible for investigating crimes and apprehending criminals.

The Central Reserve Police Force (CRPF) is a paramilitary force of India that is primarily tasked with internal security. It is the largest paramilitary force in India, with a strength of over 3 lakh personnel. The CRPF is headquartered in New Delhi.

The Border Security Force (BSF) is a paramilitary force of India that is primarily tasked with guarding the country’s borders. It is the second largest paramilitary force in India, with a strength of over 2 lakh personnel. The BSF is headquartered in New Delhi.

The Indian Army is the land-based branch of the Indian Armed Forces. It is the largest standing army in the world, with a strength of over 1.4 million personnel. The Indian Army is headquartered in New Delhi.