Which of the following behaviors is most clearly associated with Jean Piaget's concrete operational stage? A) Nikos can consider both the height and width of a container.
B) Gracie forgets about her toy because it is under her blanket.
C) Ava does not like being around unfamiliar people.
D) Sally thinks everyone's favorite color is blue, because it is her favorite color.

there are 52 characters.

explanation:

i counted all of the letters.

the answer to the question is punishment. or more specifically, positive punishment.

positive punishment occurs when a behavior is given a negative consequence for the individual doing the behavior.

sara no longer wants to ask questions (the behavior) because she is ridiculed by mr. smith (the punishment).

reinforcement is inaccurate because reinforcement always gives positive consequences for the individual doing the behavior, be it by introducing a pleasant consequence or removing an unpleasant one.