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The lines p(p^(2)+1)x-y+q=0 and (p^(2)+1...

The lines `p(p^(2)+1)x-y+q=0 and (p^(2)+1)^(2)x+(p^(2)+1)y+2q=0` are perpendicular to a common line for

A

exactly one value of p

B

exactly two value of p

C

exactly than two value of p

D

no values of p

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