Answer: D. Both say our development is continuous and has milestones
Step-by-step explanation:
Jean Piaget's theory of development focuses on cognitive development and has 4 stages: sensorimotor (0-2), preoperational (2-7), concrete operational (7-11), and formal operational (11+).
Erik Erikson's theory of development focuses on psychosocial development and has 8 stages: trust vs mistrust (0-18 mos), autonomy vs shame and doubt (18 mos - 3 yrs), initiative vs guilt (3-5), industry vs inferiority (5-13), identity vs confusion (13-21), intimacy vs isolation (21-39), generativity vs stagnation (40-65), and integrity vs despair (65+).
Both have specific age milestones for each stage, and they do not stop until death.