Researchers Have Found That Many Components of Temperament

Researchers have found that many components of temperament

A) tend to fluctuate widely for most children during the preschool and grade-school years
B) tend to be moderately stable from the preschool period to young adulthood
C) tend to become more stable over time, beginning in adolescence
D) tend to fluctuate widely for most children during the preschool and grade-school years and tend to become more stable over time, beginning in adolescence
E) none of these