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If two chords drawn from the point A(4,4...

If two chords drawn from the point `A(4,4)` to the parabola `x^2=4y` are bisected by the line `y=m x ,` the interval in which `m` lies is (a) `(-2sqrt(2),2sqrt(2))` (b) `(-oo,-sqrt(2))uu(sqrt(2),oo)` (c) `(-oo,-2sqrt(2)-2)uu(2sqrt(2)-2,oo)` (d) none of these

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