As they enter the later childhood years, children are better at ignoring irrelevant information, regulating and sustaining attention, and following through on tasks. These interrelated developments can be described as a general improvement in .

Cognition

Explanation:

Cognition is the ability of an individual to acquire knowledge and make practical use of it by engaging one's mental processes. Piaget described four stages in childhood development. They include; the sensorimotor stage, the preoperational stage, the concrete operational stage, and the formal operational stage.

The third stage is the Concrete Operational stage wherein a significant improvement is seen in the cognitive abilities of the child. He is more organized and logical in reasoning. However, the child can only reason on tangible objects because his reasoning on abstract matters is still limited.

At this stage, he can ignore irrelevant information, regulate and sustain attention and follow through on tasks.

d, i believe because of it's activity level