The two main pillars of the Toyota Production System are: ____________: making only what is needed, when needed, and in the amount needed using pull systems, single-unit flow, and demand leveling. ____________: intelligent automation focused on exposing and solving problems as they occur. Group of answer choices Value-stream; Heijunka Standardization; Stability Just-in-time; Jidoka Kaizen; Kanban Muda; Employee Empowerment