The process that would release energy from gold is fission; while from carbon it would be fusion. Nuclear fission is the splitting of a heavy, unstable nucleus into two lighter nuclei, and nuclear fusion is the process where two light nuclei combine together releasing vats amounts of energy.
<span>If a scientist were to view cancer cells under a microscope, he would probably notice several differences compared to other cells. For one, cancer cells develop abnormally shaped glands. They are usually oblong and extended compared to healthy cells. Also, cancer cells are found in clumps, so that would be a characteristic easy to see with a microscope.</span>
Going with my gut, I'd say D. But I would consult the NASA website, because they'd probably have something there about the lunar cycle. But I hope this helps!