The correct answer is Manipur.
Keibul Lamjao National Park is a national park in Manipur, India. It is the only floating national park in the world. The park is home to the endangered Sangai deer, also known as the brow-antlered deer. The Sangai is a deer with a distinctive pair of long, forward-pointing antlers. It is found only in Manipur and is the state animal of Manipur.
The park is also home to a variety of other wildlife, including tigers, leopards, elephants, wild boars, and monkeys. The park is a popular tourist destination and is known for its beautiful scenery and its wildlife.
The other options are incorrect because they are not the states where Keibul Lamjao National Park is located. Assam is a state in north-eastern India. Meghalaya is a state in north-eastern India. Mizoram is a state in north-eastern India.