14, 28, 20, 40, 32, 64, ?  Choose the correct choice from the following:
A) 56	B) 46	C) 58	D) 48	E) 68
This is an alternating multiplication and subtracting series with a pattern x2, -8, x2, -8.   56nswer : 56.
<result>A</result>
14, 28, 20, 40, 32, 64, ?