Three-month-old Trevan is playing with a small stuffed animal. Trevan's caregiver takes the stuffed animal away and hides it. Piaget would argue that Trevan would not notice the absence of the stuffed animal because he has not developed

A. Value judgment: A value judgment is an evaluation about worth or importance, not the developmental change in moral reasoning/behavior over time.
B. Meaning in life: This concerns existential or purpose-related beliefs, distinct from the developmental processes of right/wrong.
C. Moral development: Moral development refers to age-related changes in thoughts, feelings, and behaviors about right and wrong.
D. Ethical decision making: Ethical decision making is the process of choosing between actions in a situation, not the broader developmental change across the lifespan.

A. operations: “Operations” are internalized, reversible mental actions characteristic of the concrete operational stage, not attributing intention to inanimate objects.
B. conservation: Conservation refers to understanding that quantity remains constant despite changes in appearance; it’s unrelated to saying a root is “mean.”
C. animism: Animism is attributing humanlike qualities or intentions to inanimate objects (e.g., a root being “mean”).
D. egocentric thought: Egocentrism is difficulty taking others’ perspectives; while common in young children, it does not specifically describe attributing agency to objects.