alpha , beta are the roots of ax ^2...

`alpha , beta ` are the roots of `ax ^2+bx +c=0` and ` gamma , sigma ` are the roots of ` px ^3 + qx +r=0` and `D_1 :D_2` be the respective discrimination of these equations .If `alpha , beta gamma and delta ` are in A.P then `D_1 :D_2`=

A

`(a^(2))/(p^(2))`

B

`(a^(2))/(b^(2))`

C

`(b^(2))/(q^(2))`

D

`(c^(2))/(r^(2))`

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The correct Answer is:

A

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