Low-Level Nuclear Waste from Medical Facilities Generally Requires Only Short-Term

Low-level nuclear waste from medical facilities generally requires only short-term storage before disposal because

A) the concentrations of radionuclides isotopes used in medicine are very low.
B) the radionuclides are degraded by the medical procedures.
C) the radionuclides used in medicine have short half-lives.
D) the radionuclides used in medicine are selected because they are naturally safe.
E) there is little government regulation regarding the disposal of medical waste.