Answer:B.
the doctrine of separate but equal
Explanation:
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.
I'd assume that the answer is Career Fair from past experience. I hope this helps!
Lighting hitting water. I can give an explanation if needed
The answer to this would be first come first serve
