If x is real, the expression (x+2)/(2x^...

If x is real, the expression ` (x+2)/(2x^2 + 3x+6)` takes all value in the interval

A

`(1/13,1/3)`

B

`[-1/13,1/3]`

C

`(-1/3,1/13)`

D

none of these

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The correct Answer is:

B

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