If a certain coin is flipped, the probability that the coin will land heads is $$\frac1 2$$. If the coin is flipped 5 times, what is the probability that it will land heads up on the first 3 flips and not on the last 2 flips?
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A$$\frac{3}{5}$$
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B$$\frac{1}{2}$$
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C$$\frac{1}{5}$$
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D$$\frac{1}{8}$$
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E$$\frac{1}{32}$$
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正确答案: E