Why Were There Few Extended Families in Early Europe, the Middle

Why were there few extended families in early Europe, the Middle Ages, or preindustrial Europe?

A) Most people did not live long enough to spend significant time with their adult children.
B) Female infanticide resulted in a shortage of women.
C) Families often did not get along because fathers frequently gave land to only one son.
D) Children were married off in their early teens, often against their will, and had to leave the community.
E) Aging was highly stigmatized and the elderly often committed suicide.