A toddler from the Hamer tribe in Ethiopia was adopted by an American couple who described themselves as non-athletes. This tribe is known for having members who are exceptionally tall. Once she started school, she asked to play in the after-school basketball program, tried out for the team in middle school and high school, and eventually went on to earn a scholarship to play in college. This is an example of __________.
a. Nature
b. Nurture
c. Genetic predisposition
d. Environmental adaptation