Which option correctly matches Piaget's developmental stages with typical age ranges?

• A. Sensorimotor (birth-2); Preoperational (2-6); Concrete Operational (7-11); Formal Operational (11-death)
• B. Sensorimotor (2-4); Preoperational (5-7); Concrete (8-12); Formal (13-16)
• C. Sensorimotor (3-5); Preoperational (6-10); Concrete (11-13); Formal (14-18)
• D. Sensorimotor (birth-3); Preoperational (3-7); Concrete (8-12); Formal (12-death)

Answer: (A)

Piaget's theory describes four consecutive cognitive stages with approximate age ranges. Sensorimotor runs from birth to about two years, when infants explore the world through actions and begin to grasp object permanence. Preoperational follows roughly from ages two to seven, a period of symbolic thinking and language development, though thinking can be egocentric. Concrete operational comes next, about seven to eleven, when children start applying logical rules to concrete problems. Formal operational begins around eleven or twelve and extends into adulthood, enabling abstract and hypothetical reasoning. The option given aligns with this progression and these general age spans, using birth-2; 2-6/7; 7-11; and 11-death, which captures the standard order best among the choices. Other options shift the boundaries earlier or later in ways that don’t match the typical sequence as closely.