Which of the following statements about oxidation in living systems are correct
选项：

A:Oxidation reactions generally release energy (think of camp fires: the compounds in wood are oxidized by oxygen molecules in the air).
B:Most living cells obtain the energy needed for cellular work by oxidizing metabolic fuels such as carbohydrates or fat (photosynthetic organisms can also trap and use the energy of sunlight).
C:The catabolic (energy-yielding) pathways are oxidative reaction sequences that result in the transfer of electrons from fuel molecules, through a series of electron carriers, to oxygen.
D:The high affinity of O2 for electrons makes the overall electrontransfer process highly exergonic, providing the energy that drives ATPsynthesis—the central goal of catabolism.