Answer: Option (D)
Explanation:
The productivity slowdown from year 1974 to 1995 occurred due to several reasons, some of these are listed below:
1. At times there was a vast shift from the goods-driven economy to service-driven economy. i.e. the boom of industrialization.
2. During these year there was a severe deterioration in United States educational system.
3. Also during this era there was an huge increase in the transportation and production costs.