The correct answer is: a. Kullu Sutlej
The Kullu Valley is a valley in the Indian state of Himachal Pradesh. It is located in the Himalayas, and is known for its beautiful scenery, its apple orchards, and its temples. The Sutlej River flows through the Kullu Valley.
The Chamba Valley is a valley in the Indian state of Himachal Pradesh. It is located in the Himalayas, and is known for its beautiful scenery, its temples, and its forts. The Ravi River flows through the Chamba Valley.
The Kangra Valley is a valley in the Indian state of Himachal Pradesh. It is located in the Himalayas, and is known for its beautiful scenery, its temples, and its forts. The Chenab River flows through the Kangra Valley.
The Parvati Valley is a valley in the Indian state of Himachal Pradesh. It is located in the Himalayas, and is known for its beautiful scenery, its temples, and its apple orchards. The Parvati River flows through the Parvati Valley.
The Indus River is the longest river in Pakistan and the second-longest river in Asia. It flows through India, Pakistan, and China. The Indus River does not flow through any of the valleys listed in the question.