The three mountains task examines the development of:1 pointa. egocentrism b. environmentalism c. reflexes d. accommodation e. none of the above

The Three Mountains Task is a cognitive development test created by Jean Piaget, a Swiss developmental psychologist. The task is designed to assess a child's ability to take on another person's perspective, which is a part of cognitive development.

The task involves showing a child a model of three mountains of different sizes, each with its own distinct features (like a cross on top, snow, etc.). The child is then shown a picture and asked to identify from which mountain's perspective the picture was taken.

Younger children, typically under the age of seven, tend to choose the picture that represents their own perspective, not the perspective from the other mountain. This is because they are in the preoperational stage of cognitive development, where egocentrism is prevalent.

Egocentrism, in this context, is the inability to understand a situation from another person's point of view. It's not about being selfish; it's about the cognitive limitation that children have at this stage in their development.

So, the Three Mountains Task examines the development of:

a. egocentrism