Answer:
A: Optimization in differences
B: Optimization in levels
C: Optimization in differences
D: Optimization in levels
Step-by-step explanation:
Optimization in levels Vs. Optimization in differences
Optimization in levels is a method of selecting different alternatives on the basis of calculating net benefits( net benefits = benefits - costs) a person realizes from those alternatives.
Optimization in differences, on the other hand, is a method of selecting different alternatives on the basis of calculating change in levels of costs and change in levels of benefits to derive net change in benefits.
How to choose?
Optimization in levels: (net benefit) look at total benefit – total cost
Optimization in differences: look at the change in the net benefit of one option compared to another