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IF the roots of the equation x^2-5x...

IF the roots of the equation ` x^2-5x +16=0` are ` alpha , beta ` and the roots of the equation `x^2+px +q=0` and ` alpha ^2 + beta ^2 , (alpha beta)/2 , `then

A

`p=1, q=-56`

B

`p=-1,q=-56`

C

`p=1 ,q=56`

D

`p=-1,q=56`

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The correct Answer is:
B
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