Let P be a polynomial whose coefficients are real numbers. Suppose the roots of P(x)=0 are real. Then

Options

1. Athe repeated roots of P(x)=0 are also roots of P(x)+P^ (x)=0
2. Bthe roots of P(x)+P^ (x)=0 are real and distinct
3. Cthe roots of P(x)+P^ (x)=0 are distinct if the roots of P(x)=0 are distinct
4. Dthe roots of P(x)+P^ (x)=0 are real