question_answer

Consider the following statements:            

1. Heat is generated in a nuclear reactor by fission of U-235 by neutron.

2. Percentage of U-238 in natural Uranium is around 0.71.

3. Plutonium is not a naturally occurring nuclear fuel.

Which of the statements given above is/are correct?

A) 1 only              

B) 2 and 3 only     

C) 1 and 3 only                 

D) 1, 2 and 3