The correct answer is: C. 4 National Park and 23 Sanctuaries
There are 4 national parks and 23 wildlife sanctuaries in the state of Karnataka. The national parks are Bandipur National Park, Nagarhole National Park, BRT Tiger Reserve, and Bannerghatta National Park. The wildlife sanctuaries are Anshi National Park, Dandeli Wildlife Sanctuary, Bhadra Wildlife Sanctuary, Biligiri Rangaswamy Temple Wildlife Sanctuary, Brahmagiri Wildlife Sanctuary, Chandaka Wildlife Sanctuary, Dandeli-Anshi Tiger Reserve, Gopalaswamy Betta Wildlife Sanctuary, Gubbi Ranganathittu Bird Sanctuary, Hemmigepura Wildlife Sanctuary, Indira Gandhi National Park, Kabini Wildlife Sanctuary, Kanakapura Wildlife Sanctuary, Kaveri Wildlife Sanctuary, Kudremukh National Park, Nagarahole National Park, Nandi Hills Wildlife Sanctuary, Rajiv Gandhi National Park, Savandurga Wildlife Sanctuary, Shettihalli Wildlife Sanctuary, and Talakaveri Wildlife Sanctuary.
The national parks are protected areas that are designated for the conservation of wildlife. They are typically larger than wildlife sanctuaries and have stricter regulations on human activity. The wildlife sanctuaries are also protected areas, but they have less stringent regulations on human activity. They are often used for research and education purposes.
The national parks and wildlife sanctuaries in Karnataka are home to a variety of wildlife, including tigers, leopards, elephants, deer, and birds. They are important for the conservation of these species and for the protection of the environment.