Jeannette Was an Extremely Shy Child When She Was Two

Multiple Choice

Jeannette was an extremely shy child when she was two years old. However, by age five she was only mildly shy. This illustrates that

A) inherited temperaments do not last after infancy.
B) inherited temperaments are lasting and cannot be modified by learning.
C) inherited temperaments can be dynamically modified by learning.
D) shyness was not really a part of her temperament.