The zone of proximal development refers to _________

A) the notion that moral reasoning is based primarily on the evidence of what is "right" and what is "wrong" as dictated by society's rules.
B) the skills children cannot yet perform on their own, but can perform if they have some help from someone who has already attained those skills.
C) the understanding that the volume of a particular liquid remains the same even if the container it is poured into is different in appearance from the original container.
D) the outward verbalizations a young child makes when working through a challenging task.

The zone of peroximal development or the ZPD is can be referred to as immediate physiological development of the children includes different processes. It includes children's cognitive, volitional emotional psychological processes.

The example of the ZPD is that the skills children cannot develop and perform yet on their own but can attain and perform with the help of someone with those qualities.

Thus, the correct answer is option B)