The ray that is part of the reflected ray must be ray 2 from the description in the question.
What is reflection?
the term reflection has to do with the bouncing back of a wave. When waves hit a surface, they can bounce back in the opposite direction. The reflection of light leads to so many phenomena such as shadow.
In this case, the ray that is part of the reflected ray must be ray 2 from the description in the question.
So RAY 2