After Reviewing an Enormous Number of Observations of Infants' Movement

Multiple Choice

After reviewing an enormous number of observations of infants' movement, Adolph and colleagues (2008) concluded that

A) consistent performance of a motor skill develops in a single instance .
B) it takes about 13 starts and stops over a period of time to develop consistent performance of a motor skill.
C) it takes about 130 starts and stops over a period of time to develop consistent performance of a motor skill.
D) it takes about 1,300 starts and stops over a period of time to develop consistent performance of a motor skill.