Adam Smith made the division of labor theory popular and argued that practice and specialization would automatically make people better at certain tasks, and when people improved their efficiency, who benefitted?

the government
the poor
the entire society
the wealthy

The entire society. According to Adam Smith, when people improve their efficiency through practice and specialization, the result is increased productivity and economic growth, which benefits the entire society as a whole. It does not specifically benefit any particular group, such as the government, the poor, or the wealthy, but rather benefits everyone in society by creating wealth and better standards of living.