与直线平行的抛物线y=2x²的切线方程是            .

与直线4x-y+3=0平行的抛物线y=2x²的切线方程是

1. A.
   4x-y+1=0
2. B.
   4x-y-1=0
3. C.
   4x-y-2=0
4. D.
   4x-y+2=0

A.4x-y+1=0            B.4x-y-1=0             C.4x-y+2=0            D.4x-y-2=0