Insert the missing number
2, 4, 8, 16, 32, ..., 128, 256	Choose the most appropriate option
A) 46  B) 65  C) 64  D) 63  E) 68
series is 2* Previous Number.   ANSWER:64
<result>C</result>
Insert the missing number
2, 4, 8, 16, 32, ..., 128, 256