If $f:R \to R$  and $f(x)$ is a polynomial function of degree ten with $f(x)=0$ has all real and distinct roots. Then the equation ${\left( {f'\left( x \right)} \right)^2} - f\left( x \right)f''\left( x \right) = 0$ has

  • A

    no real roots

  • B

    $10$ real roots

  • C

    $6$ real roots

  • D

    $8$ real roots

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