Answer:
The correct option is a. operational level.
Step-by-step explanation:
Scientific management is a management theory that examines and combines workflows. Its fundamental goal is to increase economic efficiency, particularly worker productivity at thee operational level.
Operational level is a level at which operational activities of a business are carried out. Operational activities are company functions that are directly tied to supply of goods and/or services to the market. Basic business activities include producing, distributing, marketing, and selling a product or service.
Therefore, the correct option is a. operational level. That is, scientific management were more concerned with the problems at the operational level.