The correct answer is (b). Rajaji National Park is located in Dehradun, Uttarakhand, India. It is a national park and tiger reserve that was established in 1983. The park is home to a variety of wildlife, including tigers, leopards, elephants, deer, and monkeys. It is also a popular destination for tourists and nature lovers.
The other options are incorrect. Great Himalayan National Park is located in Himachal Pradesh, India. Keoladeo National Park is located in Bharatpur, Rajasthan, India. Van Vihar National Park is located in Jabalpur, Madhya Pradesh, India.