Lisa and Mark Are Both 8 Years Old

Lisa and Mark are both 8 years old. Whom would you expect to mature faster? Whom would you expect to have more body fat?

A) They would both mature at the same rate and have the same proportion of body fat.
B) Mark would mature faster and have more body fat.
C) Lisa would mature faster and have more body fat.
D) Mark would mature faster and Lisa would have more body fat.