Many Scientists Believe That the Disposal of Radioactive Wastes Is

Many scientists believe that the disposal of radioactive wastes is a major problem.Which of the following is a reason that the disposal of radioactive wastes could be a major problem?

A) Radioactive wastes are resistant to the process of eutrophication.
B) Radioactive wastes cannot be contained under any condition.
C) Radioactive wastes cannot be converted into a solid state.
D) Radioactive wastes remain active for a very long period of time.