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A) 9 : 3 : 3 : 1
B) 1 : 2 : 2 : 4 : 1 : 2 : 1 : 2 : 1
C) 7 : 1 : 1 : 7
D) 1 : 2 : 3 : 4
Correct Answer: A
Solution :
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