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The set off all values of m for which bo...

The set off all values of `m` for which both the roots of the equation `x^2-(m+1)x+m+4=0` are real and negative is `(-oo,-3]uu[5,oo)` (b) `[-3,5]` (c) `(-4,-3]` (d) `(-3,-1]`

A

`-3 lt m le -1`

B

`-4 lt m le -3`

C

`-3 le m le 5 `

D

`-3 ge m or m ge 5`

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The correct Answer is:
B
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