Answer:
Produces no wastes
Step-by-step explanation:
The reaction in which two or more than two nuclei combine to form larger nuclei along with subatomic particles is called nuclear fusion reaction. For example, when tritium and deuterium combines, then nuclear fusion occurs and hence helium forms.
Nuclear fusion process produces minimal waste or we can say that the produced waste is not so reactive. This process creates a huge amount of energy.
Hence, the correct option is (D) " Produces no wastes ".