Four-Year-Old Roger Has Been Given Six Different Toys,and His Mother

Multiple Choice

Four-year-old Roger has been given six different toys,and his mother is working with him to learn to count using the toys.According to developmental psychologist Rochel Gelman,which skill would Roger exhibit?

A) show his mother that each toy is assigned the same number as other similar toys
B) count the toys when they are not visible to him
C) show that even though he gets the "names" of the numbers wrong (ex.1,3,6) ,he would be consistent,and he would be able to say that there are six toys in the group
D) count the number of toys flawlessly and with precision