for any integer k from 1 to 10, inclusion, the kth of a certain sequence is given by $$(-1)^{k+1}(\frac1 {2^k})$$. If T is the sum of the first 10 terms of the sequence, then T is:
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Agreater than 2
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Bbetween 1 and 2
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Cbetween$$\frac{1}{2}$$ and 1
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Dbetween$$\frac{1}{4}$$ and $$\frac{1}{2}$$
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Eless than $$\frac{1}{4}$$