The correct answer is (b), Kashmir.
The Kashmir Valley is a large, fertile valley located in the northwestern Himalayas. It is the largest cultivable valley in the Himalayas, and is home to a diverse population of Hindus, Muslims, and Sikhs. The valley is known for its beautiful scenery, including snow-capped mountains, lush forests, and crystal-clear lakes. It is also a popular tourist destination.
The Indus Valley is a large, arid valley located in the northwestern Indian subcontinent. It is home to the Indus River, which is one of the longest rivers in the world. The Indus Valley is a major agricultural region, and is also home to a number of important historical sites, including the ancient city of Mohenjo-daro.
The Kangra Valley is a small, fertile valley located in the state of Himachal Pradesh in India. It is home to the Kangra Fort, which is one of the most important historical sites in the state. The Kangra Valley is also a popular tourist destination, known for its beautiful scenery and its hot springs.
The Doon Valley is a small, fertile valley located in the state of Uttarakhand in India. It is home to the Doon School, which is one of the most prestigious boarding schools in India. The Doon Valley is also a popular tourist destination, known for its beautiful scenery and its proximity to the Himalayas.