Letter A is the correct answer.
Anthropologist believe that few, if any, isolated groups have existed in human history. Recently, in Brazil, an isolated indigenous tribe has emerged from the Amazon forest and made peaceful contact with villagers from the border of Peru. This indigenous tribe has got its own way of communicating and can act in a very strange way but is very much aware of the presence of outsiders.
Answer: the answer will be the strong kjng
I can give you my take on it:
In command economies the quantity and more importantly the prize of the products is decided by the government and not by the people in production. As a result, people in the production can't have the motivation of producing more, as they won't benefit from it. So command economy encourages low motivation among the workers (i believe this was the case in the Eastern Block)
