Which of the following would not most likely lead to an increase in productivity?
a. capital deepening
b. an increase in human capital
c. an increase in physical capital
d. an increase in the cost of factors of production

One situation that would definitely NOT lead to an increase in productivity is
D. an increase in the cost of factors of production .

An increase in the cost of production would rather lead to a decrease in productivity - it would make the production more difficult.

Ongoing civil wars western roman empire finally collapsed476 c.e. romulus, the last of theroman  emperors in  the west, was overthrown by the germanic leader odoacer, who became the first barbarian to rule in rome. the order that the  roman empire  had brought towestern  europe for 1000 years was no more.