Answer:
The correct answer is the option D: efficiency.
Step-by-step explanation:
Productivity is the name given, in the economics' field, to the term that refers to the relation between the production and the production process. It is the concept that is used to understand the way of producting, that means that if the production increases, it also does the productivity. In addition, is a concept very related to the collaboration of the workers and the efficiency during the process. Therefore that if the time of producing a good decreases, there is an increase in the productivity, because the workes can do more goods in less time and consequently the efficiency is better and the productivity is better as well.