Respuesta :
Answer:
It is POR because POR is the male version and some key words in the sentence are viejo and sabio.
Explanation:
Hope it makes sense
It’s Por because that por is used for “reason” __for___ being old, is wise it’s not about the gender because you can use por for women too example “por” ser vieja es sabia( for being old she is wise) I hope you understand.