If the function and the derivative of th...

If the function and the derivative of the function `f(x)` is everywhere continuous and is given by
`f(x)={:{(bx^(2)+ax+4", for " x ge -1),(ax^(2)+b", for " x lt -1):}`, then

A

`a=2,b=3`

B

`a=1,b=1`

C

`a=-2,b=-3`

D

`a=-3,b=-2`

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The correct Answer is:

B

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