At which specific location do the Dihang (Siang), Dibang, and Lohit rivers merge to officially form the Brahmaputra River?

Options:

• A: Near Pasighat in Arunachal Pradesh.
• B: Near Guwahati in Assam.
• C: Near Dhubri on the Indo-Bangladesh border.
• D: Near the town of Sadiya in Assam.

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