When labor productivity increases over time, generally A) it is due to increases in the number of workers B) So do average wages C) It results in higher For prices for goods and services .

The answer is B.

Explanation:

Labour productivity is given as output per unit of labour input.

When output increases in an industry, ceteris paribus, the industry may have to lower prices in order to sell that increase. When output increases(labor productivity increases), workers will demand for higher wages. This is so because the efficiency of the workers has improved and there is need for compensation.

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