A set contains \[(2n+1)\] elements. The number of sub-sets of the set which contain at most \[n\] elements is

A set contains \[(2n+1)\] elements. The number of sub-sets of the set

1.	A set contains \[(2n+1)\] elements. The number of sub-sets of the set which contain at most \[n\] elements is
A.	\[{{2}^{n}}\]
B.	\[{{2}^{n+1}}\]
C.	\[{{2}^{n-1}}\]
D.	\[{{2}^{2n}}\]
Answer» E.

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A set contains \[(2n+1)\] elements. The number of sub-sets of the set which contain at most \[n\] elements is

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