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Let \( \alpha, \beta \) be the roots of \( a x^{2}+b x+c=0, \gamma, \delta \) be the roots of \( \mathrm{px}^{2}+\mathrm{qx}+\mathrm{r}=0 \) and \( \mathrm{D}_{1} \) and \( \mathrm{D}_{2} \) be their respective
P discriminant. If \( \alpha, \beta, \gamma, \delta \), are in A.P., then the ratio
W. \( \mathrm{D}_{1}: \mathrm{D}_{2} \) is equal to
(a) \( \frac{a^{2}}{b^{2}} \)
(b) \( \frac{a^{2}}{p^{2}} \)
(c) \( \frac{b^{2}}{q^{2}} \)
(d) \( \frac{c^{2}}{r^{2}} \)
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