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If the two circles $(x-1)^2 + (y-3)^2 = r^2$ and $x^2 + y^2 - 8x + 2y + 8 =0$ intersect in two distinct points, then :


( A ) $r>2$
( B ) $2 < r < 8$
( C ) $r=2$
( D ) $r < 2$

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