Which is an example of a technological advance made by stone age humans?

Spears were a common composite tool and were often used with an atlatl. Beyond weapons and basic necessities, Stone Age people invented new technology for farming, particularly in the Neolithic Age when they became a more settled people.

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it provided for selection of government employees through competitive examinations. it also made it unlawful to fire or demote covered employees for political reasons or to require them to give political service or payment, and it set up a civil service commission to enforce the law.

explanation:

i think the answer's are a) b) and c)