Answer:
We need to choose the right sentences.
A cientific-humanist school:
- enseña los conocimientos necesarios para estudiar una carrera universitaria
Teaches the needed knowelde to study an university career.
This is, at principle, true.
-Combina estudios generales con las habilidades técnicas:
Combines the general habilities with the technical ones.
This would be called a "Colegio Tecnico", so this can be discarded.
-Es una de dos opciones para alumnos de la escuela secundaria
It is one of two options for students in secondary school.
It is a type of secondary school, depending on where you are, you may have more or fewer options to choose, so this sentence also can be discarded.