9, 11, 33, 13, 15, 33, 17, ... choose which pair of numbers comes next

1.	9, 11, 33, 13, 15, 33, 17, ... choose which pair of numbers comes next?
A.	19, 33
B.	33, 35
C.	33, 19
D.	15, 33
E.	19, 21
Answer» B. 33, 35

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