The eccentricity of the conic represented by \( x^{2}-y^{2}-4 x+4 y...

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The eccentricity of the conic represented by \( x^{2}-y^{2}-4 x+4 y+16=0 \) is
(A) 1
(B) \( \sqrt{2} \)
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(C) 2
(D) \( 1 / 2 \)
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