What do you understood by 'three layers' given in the passage?

• A. We are like a three storeyed building where in the first floor is of the child, the second floor is that of the parent and the third floor is that of the adult.
• B. The child is spontaneous, the parental voice is that of a caution and the adult has himself come of an age.
• C. Whenever you want to do something-your parent says do it, your adult says it is not worth doing and your child goes on pulling somewhere else.
• D. Our parent makes us sensible, our adult makes as rational and disciplined and one child makes us carefree.