Respuesta :
It would be "mis"
"mis" and "mi" both mean my in English the difference is "mis" is plural and since her parents are plural it would be "mis" instead of "mi"
Translation
Marco: is that your parents wedding photo?
Marta: Yes, they are my parents.
"mis" and "mi" both mean my in English the difference is "mis" is plural and since her parents are plural it would be "mis" instead of "mi"
Translation
Marco: is that your parents wedding photo?
Marta: Yes, they are my parents.