Which of the following is the correct order for Piaget's four stages of cognitive development?
◦ preoperational, formal operations, sensory-motor, concrete operations
◦ sensory-motor, preconventional, conventional, and formal operations
◦ preoperational, sensory-motor, concrete operations, formal operations
◦ sensory-motor, preoperational, concrete operations, formal operations
◦ preoperational, concrete operations, formal operations, sensory-motor