The Laplace-Runge-Lenz vector $\mathbf{A} = \mathbf{p} \times \mathbf{L} - m k \hat{r}$ points along:
(A)
The major axis from the focus toward the perihelion
(B)
The minor axis of the elliptical orbit
(C)
The direction of the angular momentum vector
(D)
Perpendicular to the orbital plane