The correct option is D Colon
Putrefaction is the decomposition of proteins caused due to bacterial or fungal decomposition of organic matter. The bacteria, yeast and other organisms in the fermented food allow colon to produce good bacteria. The fermented foods increase B vitamins such as riboflavin, thiamin and niacin. The activated form of folic acid is increased, which helps in cardiovascular and cancer risks. Choline is increased, which breaks down fat in the body and liver and helps with constipation. In addition, fermentation increases glutathione, an anti aging amino acid, and enzymes needed for digestion and detoxification.