Among the Mundurucu, until the age of 13 all children live exclusively with their:​​

A) ​grandparents
B) ​both mothers and fathers
C) ​fathers and older brothers
D) ​mothers and younger siblings

Among the Mundurucu, a traditional society in Brazil, children live exclusively with their mothers and younger siblings until the age of 13. This matrifocal living arrangement emphasizes the role of the mother in the early socialization and upbringing of children.