If x^2+2(a+1)x+9a-5=0 has only negative ...

If `x^2+2(a+1)x+9a-5=0` has only negative roots then `a`

A

` k in (-oo,0)`

B

` k in [0,oo)`

C

`k in ((5)/(9),1] cup [6,oo)`

D

`k in (-oo, 6]`

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The correct Answer is:

C

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