9. Which statement of citric acid (CA) cycle is true?1. In eukaryotes, CA cycle take places in mitochondrial matrix.2. CA cycle plays roles in both catabolism and anabolism.3. GTP is a direct source of energy produced in the CA cycle.4. All enzymes of the cycle are located in the matrix, except malate dehydrogenase.(A) 1, 2 and 3.(B) 2, 3 and 4.(C) 1, 3 and 4.(D) 1, 2, and 4.(E) All of above are true.