The correct answer to the question "What is glycerin taken from livestock?" is:
- a by-product
Glycerin is typically a by-product of soap-making processes that involve animal fats. When animal fats are saponified (turned into soap), glycerin is produced as a side product. This glycerin can then be separated and used in various products like cosmetics, pharmaceuticals, and food.
So, in the context of livestock, glycerin is obtained as a by-product from the processing of animal fats in soap production.
