Which of the following main rivers of North America ori

Which of the following main rivers of North America originate from the Rocky Mountains ?
1. Mississippi
2. Missouri
3. Colorado
4. Rio Grande
5. Columbia

[A] 1, 2 and 3
[B] 2, 3 and 5
[C] 1, 2 , 3 and 4
[D] All of them

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