The correct answer is option 4, Uttarakhand. Nanda Devi peak is indeed located in Uttarakhand, which is a state in northern India. It is one of the highest peaks in the Indian Himalayas, with an elevation of 7,816 meters (25,643 feet). Nanda Devi is considered a sacred mountain in Hindu mythology and is named after the goddess Nanda Devi.

Let`s now analyze the other options:

Option 1, Himachal Pradesh: This state is located in northern India and is known for its beautiful mountainous landscapes. However, Nanda Devi peak is not located in Himachal Pradesh.

Option 2, Jammu and Kashmir: Jammu and Kashmir is a state in northern India that shares its borders with Pakistan and China. Although it has many stunning mountain peaks, Nanda Devi is not located in Jammu and Kashmir.

Option 3, Sikkim: Sikkim is a small state in northeastern India, famous for its biodiversity and natural beauty. However, Nanda Devi peak is not located in Sikkim.

In summary, the Nanda Devi peak is located in Uttarakhand, making option 4 the correct answer.