Does anyone know the answer to this

I GOT YOU MY BOI
The first use of enzymes occurred more than 5,000 years ago, when people stored milk in animal stomachs, which contains enzymes called “rennet,” that turn milk into cheese.(nasty) This is a good example of how enzymes work as catalysts, that is, they speed up biological reactions. Novozymes’ customers use enzymes to replace chemicals in, and improve efficiency of, a wide variety of industrial processes, for example in the manufacture of margarine, beer, yogurt, concrete, leather, textiles and ethanol, where the enzymes are not part of the end-product. Enzymes are also used directly in products such as laundry detergents, where they help remove stains and enable low-temperature washing.

Dthe lipid is most likely

I’m going to go with b!