Select the combination of numbers that when placed sequentially in the blanks of the given series will complete the series.
3 _ 3 _ 5 3 3 5 _ 3 3 5 5 _ _ 3 5 5 _ _ _ 3 5 5 7 _ 9
The complete series will be: 3 3 / 3 3 5 / 3 3 5 5 / 3 3 5 5 7 / 3 3 5 5 7 7 / 3 3 5 5 7 7 9 "3 3 5 7 3 7 7 3 7" will complete the given series.
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