Identify the processes of glucose metabolism represented in Figure 5.1. A) A = electron transport chain, B = Krebs cycle, C = glycolysis, D = fermentation B) A = glycolysis, B = fermentation, C = Krebs cycle, D = electron transport chain C) A = fermentation, B = glycolysis, C = Krebs cycle, D = electron transport chain D) A = glycolysis, B = Krebs cycle, C = fermentation, D = electron transport chain E) A = glycolysis, B = Krebs cycle, C = electron transport chain, D = fermentation