Under Lev Vygotsky's theory of socio-cultural development, analyzing the concepts of 'Zone of Proximal Development' (ZPD) and 'Scaffolding', if a More Knowledgeable Other (MKO) provides assistance to a learner during problem-solving only when and to the extent necessary to bridge the gap between their actual capability and potential capability, which of the following substantive statements is most authentic regarding this entire dynamic?

In Lev Vygotsky's socio-cultural theory, the 'Zone of Proximal Development' (ZPD) represents the gap between a child's 'actual development level determined by independent problem solving' and the 'potential development level determined through adult guidance or collaboration with more capable peers'. 'Scaffolding' is the temporary support provided by the MKO, and as the child becomes independent, this support is gradually removed. For a detailed study of this theory, you can refer to Wikipedia reference.