Final answer:
The Hindu Kush is not a mountain range in the Indian Perimeter
Step-by-step explanation:
The correct answer is d. Hindu Kush. The other three options, a. Indus Valley, b. Himalayas, and c. Karakoram, are all mountain ranges in the Indian Perimeter. The Indus Valley is located in Pakistan, while the Himalayas and Karakoram are found in northern India, Nepal, and Bhutan.
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