Answer:
Chemically speaking, digestion is mostly hydrolysis: proteins to amino acids, carbohydrates to monosaccharides, etc. Oxidation has nothing to do with oxygen.
Explanation:
Excercises that work in the cor are exercising muscles found in the: abdomen.
Seek therapy or do an activity you like to do. I have had it before and I went to therapy and it really has helped.
I believe the best option to your question will be A.
