The correct answer is: C. Palkot Wildlife Sanctuary.
Palkot Wildlife Sanctuary is a wildlife sanctuary in Palamu district in the Indian state of Jharkhand. It is located in the Palamu Tiger Reserve and covers an area of 160 square kilometers. The sanctuary is home to a variety of wildlife, including tigers, leopards, elephants, deer, and birds.
Udhwa Lake Bird Sanctuary is a bird sanctuary in the Indian state of Jharkhand. It is located in the Palamu district and covers an area of 100 square kilometers. The sanctuary is home to a variety of birds, including flamingos, pelicans, herons, and storks.
Koderma Wildlife Sanctuary is a wildlife sanctuary in the Indian state of Jharkhand. It is located in the Koderma district and covers an area of 250 square kilometers. The sanctuary is home to a variety of wildlife, including tigers, leopards, elephants, deer, and birds.
Rajmahal Wildlife Sanctuary is a wildlife sanctuary in the Indian state of Jharkhand. It is located in the Sahebganj district and covers an area of 1,000 square kilometers. The sanctuary is home to a variety of wildlife, including tigers, leopards, elephants, deer, and birds.
Palkot Wildlife Sanctuary covers the lowest geographical forest area among the given options.