Based on a micro-analysis of the essential and operational dynamics of the 'Zone of Proximal Development' (ZPD) and 'Scaffolding' under Lev Vygotsky's Socio-Cultural Theory, which of the following statements is most authentic and scientifically true in the context of the teaching-learning process?

According to Lev Vygotsky's socio-cultural theory, the Zone of Proximal Development (ZPD) defines the gap between a child's 'level of independent problem solving' (actual development) and the 'level of problem solving under adult guidance or capable peer collaboration' (potential development).

In this process, 'Scaffolding' refers to the temporary and flexible support provided by a More Knowledgeable Other (MKO), which is gradually faded out as the child's proficiency increases.