Answer: Given these general effects, the most accurate answer would be:
a. increases; decreases
Technological progress tends to increase real wages over time due to increased productivity, but it can also lead to decreases in employment in certain sectors or occupations due to labor displacement.
Explanation:
Technological progress can have various effects on the real wage and employment, depending on several factors such as the type of technology, the industry, and the overall state of the economy. However, let's consider the general effects:
When technological progress occurs: