Which phrase best describes nuclear fusion?(1 point) Responses the process by which a large nucleus is divided into smaller nuclei the process by which a large nucleus is divided into smaller nuclei the spontaneous emission of radiation from an unstable nucleus the spontaneous emission of radiation from an unstable nucleus a series of reactions in which particles from one reaction trigger the next reaction a series of reactions in which particles from one reaction trigger the next reaction the process by which small nuclei combine into a larger nucleus
