His theory is called the Social constructivism.
According to this theory, the potential development varies according to the level at which the learning takes place. It is composed of cognitive structures that are in the process of maturation, but that can only be developed with the guidance and collaboration of third parties. Vygotsky was a cognitivist, but he disagreed with the assumption that learning was independent of the social context. He considered that all cognitive functions originate in social interactions and that learning not only ivolves the assimilation and adaptation of new knowledge by students. For Vygotsky it is a process in which the learners are integrated into a community of knowledge.
The correct answer is a testable idea.
A Hypothesis is a assumed explanation for a certain event or phenomenon. For a hypothesis to be accepted for scientific research, first and foremost, the hypothesis should be able to undergo research or testing. It must hold the element of being testable for it to be proven.
I believe the answer would be, "Posture".
The caste system regulated many aspects of live, such as what jobs one would have, whom one could marry and the position in the society.
These were taken to be almost impossible to change and they made the society less flexible, with less changes. People didn't see much change nor did they expect many changes, and this stability gave a sense of order.
