Question

Which of the following sources of radiation produced from nuclear power plants poses the largest threat to humans?

the spent fuel rods

the nuclear reactor inside the facility

the nuclear facility itself

the energy from the nuclear reaction inside the nuclear reactor

Answer 1

D. the energy from the nuclear reaction inside the nuclear reactor

I think.

Answer 2

but how could a human become exposed to such radiations,
?
this is a strange question

Answer 3

Well, there can always be accidents or other problems (i.e. Japan earthquake) that allow radiation to escape. Also, gamma rays are very powerful, they can penetrate through most things easily.