All of the Following Are Differences Between the Infant and Toddler

All of the following are differences between the infant and toddler forms of the MacArthur CDI except

A) there are more words on the toddler vocabulary checklist than on the infant vocabulary checklist
B) the infant form checks the frequency with which children use gestures to communicate, whereas the toddler form asks parents to list three of the longest sentences their child has said recently
C) the infant form uses parent reports, whereas the toddler form relies on samples of the child's own speech
D) there are more questions about children's pretend play behavior on the infant form than on the toddler form