Answer:
The answer is A. improvement in technology
Step-by-step explanation:
Labor productivity growth is not relevant to a decline in university attendance.
Applying the Malthusianism theory, an increase in population growth can't lead to labor productivity growth because while that population growth is potentially exponential, the growth of resources is linear.
Finally, the physical capital per worker is the quantity of equipment and input resources that are used to produce output goods and services. It has no direct influence to the labor productivity growth.