Answer:
The answer is D) egocentrism.
Step-by-step explanation:
According to Piaget, children on the preoperational stage of cognitive development, occuring around age two, tend to present "egocentrical" behaviours. That is, they are concerned only about themselves, and are incapable of viewing another person's perspective. Children on this stage also assume that other people feel and think exactly the same way as them.