I believe the answer is c
It can make food a must have item because the more people there is, the more food the community will need to have
Answer: A. a paradigm shift,as it challenged the existing paradigm of the day
Explanation:
A paradigm shift is a major change that occurs in the practices and the concepts of how something works.
Since Ptolemy believed that the earth was at the center of the universe while Copernicus asserted the notion that the sun was at the center of the solar system. Thomas Kuhn would call this an example of paradigm shift.
