Answer:
Letter a is correct. Pull-based systems.
Explanation:
Lean production is a concept instituted by Toyota between 1948 and 1975, whose main objective is to optimize management processes so that customer demands are met in the shortest possible time, at the highest quality and lowest cost, in a process that integrates all organizational levels. It is a waste reduction model through the continuous flow of production processes and integrates the concepts of Kanban, Lean manufacturing, Just in time and production leveling.
Therefore lean production depends on a pull-based system, which is a technique that aims to reduce waste in the production process through less work overload and reducing storage costs, because the work is only performed when there is demand for it.