已知a,b,c均为整数,且满足a2+b2+c2+3<ab+3b+2c则以a+b.c+d为根的一元二次方程是( ) (A)X2-3X+2=0 (B)X2+2X-8=0 (C)X2-4X-5=0 (D)X2-2X-3=0