Consider the following statements about reactors:
1. Candu reactor a natural uranium fuelled, heavy water cooled and moderated reactor
2. In a pressurized water reactor the coolant water boils in the core of the rector
3. Liquid metal is preferred as a coolant in case of a homogeneous reactor
Which of the statements given above is/are correct?
(a) 1 only (b) 2 only (c) 1 and 3 only (d) 1, 2 and 3