Eight-month-old Sarah is presented with a collection of small objects, including dolls, toy animals, and toy cars. If she has developed categorization, she most likely will

a. place each doll or animal next to a toy car, creating sets of "drivers" and vehicles
b. put all of the dolls in one group, the toy animals in a second group, and the toy cars in a third group
c. not be able to manipulate the objects, and the researchers will use her visual behavior as an indicator of her ability to categorize the objects
d. choose to play with just the dolls, since she is a girl (a boy would almost always select the cars)

B