Children Living at High Altitudes Develop Larger Chest Cavities by Adulthood

Children living at high altitudes develop larger chest cavities by adulthood than children living at lower altitudes.This is an example of

A) environmental adaptations that occur at the individual level.
B) acclimatization at the individual level.
C) developmental adaptations that occur at the level of the individual during critical life stages.
D) inheritance of increases in lung volume by high-altitude populations.