Physics · GRAVITATION

In the shown figure representing Kepler's second law, a planet moves from point \( P \) to \( P' \) in time interval \( \Delta t \), sweeping an area \( \Delta A \). Which of the following vectors is strictly parallel to the position vector \( \mathbf{r} \) of the planet relative to the Sun \( S \)?

1. A
   The linear velocity vector \( \mathbf{v} \)
2. B
   The gravitational force vector \( \mathbf{F} \) (anti-parallel)
3. C
   The areal velocity vector \( \frac{\Delta \mathbf{A}}{\Delta t} \)
4. D
   The angular momentum vector \( \mathbf{L} \)