Why is over-processing considered a type of waste in lean manufacturing?

Why is over-processing considered a type of waste in lean manufacturing?
A . Taking extra time to over-produce makes it a type of waste.
B . Manufacturing to a higher quality than is required takes more natural resources, time, and energy without adding value.
C . Over-producing could add features that narrow the marketability of the item and reduce revenue.
D . Due to being over-engineered, the price will become out of balance with the market.

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Answer: B