The lighted half of the moon faces away from the earth during the New Moon phase
Answer is: C. nuclear fission.
Nuclear fission is a nuclear reaction or a radioactive decay where nucleus of atom split into smaller ligher nuclei.
Nuclear fission is exothermic reaction which release large amounts of energy (electromagnetic radiation or as kinetic energy, which heat reactors where fission reaction take place).
The answer is number 2. That releases massive amounts of radiation and by the way, that is how atomic bombs are made to detonate.