question_answer

Consider the following statements regarding nuclear reactors:

1.  A mixture of radioactive materials is used as fuel

2.  Spent fuel is reprocessed to recover thorium/ plutonium

3. Control rods are made of zirconium

4.  Spent fuel is fully disposed of safely, as waste.

Which of these statements are correct?

A) 1 and 2            

B) 3 and 4

C) 1 and 3            

D) 1, 3 and 4