Which of the following most logically completes the argument?
Many consumer products contain organic ingredients. Since such ingredients become unstable after being exposed to oxygen for long periods of time, chemical preservatives are added to foods to prolong the disintegration and decomposition of molecular structures. These preservatives affect the chemical composition of a product, and lead to harmful results in consumers. Therefore, to prevent harm to the public, chemical preservatives need not be included in products, especially since __________.
A. the process of the creation of such preservatives is lengthy and complex
B. they have been known to produce an undesirable aftertaste in food products
C. health is not an overly important factor in the development of a commercial product
D. it has been found that natural stabilizers are equally effective without being unhealthy
E. the raw materials needed to formulate them are extremely costly