How many two-element subsets of <1, 2,3,4,5,6,7,8> are there that do not contain the pair of elements 2 and 4?  Choose the correct choice from the following.
A) 11	B) 22	C) 24	D) 25	E) 27
8C2 - 1 = 27 Answer is 27
<result>E</result>
How many two-element subsets of <1, 2,3,4,5,6,7,8> are there that do not contain the pair of elements 2 and 4?