Four-Year-Old Kendra Cannot Understand That a "Skinny" Glass and a "Fat

Multiple Choice

Four-year-old Kendra cannot understand that a "skinny" glass and a "fat" glass can hold the same amount of juice. She immediately grabs what she perceives as the glass containing more juice and leaves the other one for her little brother. Kendra is in the __________ stage of development and has not yet mastered the concept of __________

A) sensorimotor; object permanence.
B) preoperational; deferred imitation.
C) preoperational; conservation.
D) concrete operations; decentering.