The answer has to be B 202020 rule for eyes buying expensive earphones is gonna make the audio louder and lights has something to do with your eyesight
Answer: Concrete operational stage
Explanation: Concrete operational stage is the third stage of Piaget’s theory, that deals with cognitive development of a child. Concrete operational stage comes after the preoperational stage, which occurs between 7-10 years of age. Optimum use of logic is usually seen during this period.
However, the ability to view things from another individual’s perspective is acquired by the child during this stage, regardless of what they think happened.
It is D.) The effectiveness of the medicine decreases over time because you get used to it in your body and it stops working.
The salon professional is primarily concerned with the voluntary muscles of the head, face, neck, arms and hands.