Baby Billy Is Currently Five Months Old

Baby Billy is currently five months old. Since birth, Billy's weight and height have been in the 90th percentile on the growth charts. What does this tell you about Billy's growth and development?

A) Billy is underweight and is not growing well.
B) Billy is overweight and is consuming too many calories.
C) Billy is growing consistently; he may grow to be a larger, but healthy, adult.
D) Billy has gone through a growth spurt; his growth will taper off soon.