Which of the Following Statements About Birth Order Is True

Multiple Choice

Which of the following statements about birth order is true?

A) Firstborns always receive the most parental investment in families with three or more children.
B) Middleborns end up receiving less total parental investment even if the parents divide their investment equally among all the children present in the household at a given time.
C) Lastborns always receive the least parental investment if the parents divide their investment equally among all the children present in the household at a given time.
D) Middleborns end up receiving more total parental investment,particularly if the parents divide their investment equally among all the children present in the household at a given time.