The equation of the tangent to the circle \( x^{2}+y^{2}=a^{2} \) which makes a triangle of area...

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The equation of the tangent to the circle \( x^{2}+y^{2}=a^{2} \) which makes a triangle of area \( a^{2} \) with the coordinate axes is
(A) \( x \pm y=a \sqrt{2} \)
(B) \( x \pm y=\pm a \sqrt{2} \)
(C) \( x \pm y=2 a \)
(D) \( x+y=\pm 2 a \)
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