Research Suggests That the Abstract Categories "Good" and "Bad" Are

Multiple Choice

Research suggests that the abstract categories "good" and "bad" are ____.

A) not acknowledged by children until they reach ages 9-10
B) not acknowledged by children until they reach ages 5-6
C) understood by children as early as age 2 1/2, if not earlier
D) understood even at birth, and certainly by 3 months after birth