Twin Figures Were Traditionally Made by the Yoruba of Western

Twin figures were traditionally made by the Yoruba of western Nigeria:

A) because there is a high infant mortality rate for twins amongst the Yoruba
B) so that if one twin died, the sculpture could be cared for along with the surviving infant
C) because the dolls would help Yoruba children, especially girls, learn to care for babies
D) all of the previous answers
E) none of the previous answers