Which of the following pairs do NOT share any borders?

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Accepted Answer

Step 1: Identify Indian states that border Bhutan — these are Sikkim, West Bengal, Assam and Arunachal Pradesh.

Step 2: Check each given pair:

- (1) Bhutan and Arunachal Pradesh — share a common border (eastern Bhutan meets Arunachal Pradesh).
- (2) Bhutan and Meghalaya — do NOT share a border; Meghalaya lies south-west of Assam and is separated from Bhutan by Assam.
- (3) Bhutan and West Bengal — share a border (northern West Bengal districts like Darjeeling/Jalpaiguri touch Bhutan).
- (4) Bhutan and Assam — share a border along central Bhutan and northern Assam.

Conclusion: Only pair $(2)$ (Bhutan and Meghalaya) do not share any border. FINAL_ANSWER: b

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