Look at this series: (1/9), (1/3), 1, ____ , 9, ... What number should fill the blank?  Choose the correct choice from the following answers:	A) 3	B) 4	C) 1	D) 6	E) 9
3   3   This is a multiplication series; each number is 3 times the previous number.
<result>A</result>
Look at this series: (1/9), (1/3), 1, ____ , 9, ... What number should fill the blank?