Dietary fiber from whole grains, as partof an overall healthy diet, helps reduce blood cholesterol levels and may lower risk of heart disease. Fiber isimportant for healthy bowel function and helps reduce constipation. B vitamins help the body release energy from protein, fat and carbohydrates.
In you salivary glands there is an enzyme in the saliva that begins to break down the starches of the food.
Answer: 80-90%
Explanation: "Cigarette smoking is the number one risk factor for lung cancer. In the United States, cigarette smoking is linked to about 80% to 90% of lung cancer deaths. Using other tobacco products such as cigars or pipes also increases the risk for lung cancer." - cdc.gov
Well I'm not sure if I'm right but I believe that the answer is A