The graph shows the citric acid cycle. during the citric acid cycle what happens to acetyl-coa? a) it enters the citric acid cycle engage carbon dioxide to form citric acid engage more carbon dioxide do redox reactions to form a four carbon molecule b) it enters the citric acid cycle and associates with a four carbon molecule form is citric acid and then through redox reactions jet regenerates the four carbon molecule air c) it enters glycolysis and associates with a five carbon molecule the redox reactions forming another acetyl-coa d)it enters the citric acid cycle and associates with a four carbon molecule forming a five carbon compound and then through oxidation reactions regenerates the four-carbon molecule