Which of the Following Children Is Probably the Oldest, Based

Which of the following children is probably the oldest, based on how their definitions of what a friend is fit into Selman's view of friendship development?

A) Yvonne, who says "a friend it the person you play with"
B) Greg, who says "a friend is someone who you can help you build things"
C) Mike, who says "a friend is someone who you can trust and depend on"
D) Gloria, who says "a friend is the person you spend the most time with"