This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of carbohydrate, Subject name: Biochemistry
Which of the following is an end product of glycosis in an RBC? 
Select and explain. 
A. Lactic acid, B. Acettyl CoA, C. Enters krebs cycle, D. Ethanol
A: Lactic acid
Answer: A: Lactic acid 
Explanation: Erythrocytes:Major Pathways: Anaerobic glycolysis, pentose phosphate pathwayMain Substrates: GlucoseMajor Products Expoed: Latic acid, lactateSpecialist Enzymes: Hemoglobin, enzymes of pentose phosphate pathwayRef: Harper&;s Biochemistry, 30th edition, page no: 150