# If the points $(1, 1, \lambda)$ and $(-3, 0, 1)$ are equidistant from the plane, $3x+4y+12z+13=0$, then $\lambda$ satisfies the equation :
( A ) $3x^2+10x+7=0$
( B ) $3x^2+10x-13=0$
( C ) $3x^2-10x+21=0$
( D ) $3x^2-10x+7=0$