A beam of light composed of red and green rays is incident

A beam of light composed of red and green rays is incident obliquely at a point on the face of rectangular glass slab. When coming out on the opposite parallel face, the red and green rays emerge from

1. one point propagating in the same direction
2. two points propagating in two different non-parallel directions
3. two points propagating in two different parallel directions
4. one point propagating in two different directions

Since refractive index for both the light are different, so they emerge out moving in two different parallel directions.