High level radioactive waste can be managed in which of the following ways?

Identify the effects of radiations released from radioactive waste on living organisms.

How is radioactive waste disposed of?

Which of the following statement$(s)$ is/are correct?
$(i)$ Nuclear energy is a non-polluting way of generating electricity.
$(ii)$ Radioactive waste leakage incidents occurred at Three Mile Island and Chernobyl.
$(iii)$ Prolonged exposure to radioactive waste can cause cancer.
$(iv)$ Radioactive waste is recyclable.
$(v)$ High doses of radiation are lethal.

$X$ is a highly potent pollutant and should be buried at a depth of $Y$ meters below the Earth's surface.

$I.$ Radiation from nuclear waste is $A$ at a very high rate.
$II.$ At low doses,radiation causes $B$.
Complete the given statement by choosing the appropriate option for $A$ and $B$.