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The quadratic equation p(x)=0 with real ...

The quadratic equation `p(x)=0` with real coefficients has purely imaginary roots. Then the equation `p(p(x))=0` has only purely imaginary roots at real roots two real and purely imaginary roots neither real nor purely imaginary roots

A

only purely imaginary roots

B

all real roots

C

two real and tw purely imaginary roots

D

neither real nor purely imaginary roots.

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The correct Answer is:
a
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