When Michael's Father Brought Him for His 4-Year-Old Well-Child Check-Up

When Michael's father brought him for his 4-year-old well-child check-up, he was told that it is likely that Michael will be over six feet tall when he finishes growing. How would the pediatrician be able to predict Michael's later height?

A) The doctor will look at the parent's height and make an educated guess.
B) Stable growth curves at age four can predict adult height.
C) Michael was a larger than average baby when born.
D) Michael was taller than average at age 1.