All of the Following Descriptions of the NICHD Study of Early

All of the following descriptions of the NICHD Study of Early Child Care and Youth Development are accurate except

A) the majority of infants in the sample entered nonparental childcare before the age of 4 months
B) mothers with the highest incomes returned to work later than other mothers in the sample
C) children older than age two years were more likely to be cared for in childcare centers than were children younger than two
D) researchers gathered information about children's social, emotional, cognitive, and language development, as well as behavior problems and physical health and development