The answer is b hope I helped
Answer:
The answer is C
Explanation:
A spear-thrower, spear-throwing lever or atlatl is a tool that uses leverage to achieve greater velocity in dart or javelin-throwing, and includes a bearing surface which allows the user to store energy during the throw.
An economic system where all business is controlled by people who share equally in the profits is called "socialism", although it should be noted that there is almost always a bit of government intervention in this process to made sure profits are distributed.