If x is an integer, is $${9}^{x}+{9}^{-x}=b$$ ?
(1)$${3}^{x}+{3}^{-x}=\sqrt{b+2}$$
(2)$$x > 0$$
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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.