If α,β are the roots of the equation x²−2x+3=0, then the equation whose roots are P=α³−3α²+5α−2 and Q=β³−β²+β+5 is
A. x²+3x+2=0
B. x²−5x+4=0
C. x²−3x+2=0
D. x²+5x+4=0