The second answer. Because “sus” is the only one which has the “s” because it is plural. If it would be “nuestro” it should had an “s” like “nuestros hijos son altos” or “tus hijos son altos”
Answer:
A vivieron
Explanation:
Because ellos could be used as a pronoun for sus padres, so it would be vivieron.
Hola amiga
hope this helps
