Answer:
Arche
Explanation:
These philosophical thinkers were searching for the arche, the source or the the beginning.
These people were searching for the arche in presocratic terms. The arche is a Greek term that means first principle. The arche according to aristotle is the explanatory first principle from which every other thing is formed. According to another philosopher thales, the arche is the source and the beginning
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The branches prevent one section of the gov. becoming to powerful. It sets restrictions
The Answer to your question is A, as once you've completed it, during the time of your hand in you may gain more knowledge, so it'll be easy to go back and change.