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Let alpha(a) and beta(b) be the roots of...

Let `alpha(a)` and `beta(b)` be the roots of the equation ,
`(root(3)(1+a)-1)x^2+(sqrt(1+a)-1)x+(root(6)(1+a)-1)=0` where `a gt -1`. Then `lim_(x rarr 0^+)alpha(a)` and `lim_(x rarr 0^+) beta(a)` are

A

-5/2 and 1

B

-1/2 and -1

C

`-7/2 and 2`

D

`-9/2 and 3`

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The correct Answer is:
B
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