If alpha,beta are the roots of the equa...

If `alpha,beta` are the roots of the equation `ax^2+ bx +c =0`, then `alpha/(alphabeta+b)+beta/(a alpha+b)` is equal to -

A

`2/a`

B

`2/b`

C

`2/c`

D

`-2/a`

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The correct Answer is:

D

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