Each of the numbers a, b, c, d is equal to -1, 0, or 1. What is the value of a + b + c + d?
1. $$\frac{a}{2}+\frac{b}{4}+\frac{c}{8}\frac{d}{16}=\frac{1}{8}$$
2. $$\frac{a}{4}+\frac{b}{16}+\frac{c}{64}+\frac{d}{256}=\frac{11}{64}$$
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AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
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BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
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CBOTH statement TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
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DEACH statement ALONE is sufficient.
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EStatements (1) and (2) TOGETHER are NOT sufficient.
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正确答案: B