Choice "A" is correct. A benefit of just-in-time is a more efficient use of employees with multiple skills.
Choice "b" is incorrect. Just-in-time is concerned with seamless integration between a few highly vetted suppliers known for reliability and quality resources.
Choice "d" is incorrect. Just-in-time considers inventory to be wasteful. Inventory space would likely be reduced, not expanded.
Choice "c" is incorrect. Just-in-time enables multi-skilled employees to address any breakdowns without relying on specialized skills of a maintenance department.
