Under Lev Vygotsky's sociocultural theory, when deeply analyzing the concepts of 'Zone of Proximal Development' (ZPD) and 'Scaffolding', which of the following statements most accurately highlights the actual philosophical and cognitive nature of this process?

According to Lev Vygotsky's sociocultural theory, the Zone of Proximal Development (ZPD) indicates the gap between what a child can do independently and what they can do under the guidance of an adult or More Knowledgeable Other (MKO). In this process, 'scaffolding' is the temporary and flexible support that enables the learner to complete complex tasks, and as the learner's mastery increases, this support is gradually withdrawn.