A. Bhutan, Bangladesh, India and Pakistan
B. Bhutan, Bangladesh, the Maldives, Nepal, India, Pakistan and Sri Lanka
C. Afghanistan, Pakistan, Thailand, Indonesia, Nepal and Sri Lanka
D. None of the above
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A. Bhutan, Bangladesh, India and Pakistan
B. Bhutan, Bangladesh, the Maldives, Nepal, India, Pakistan and Sri Lanka
C. Afghanistan, Pakistan, Thailand, Indonesia, Nepal and Sri Lanka
D. None of the above