Some statements about heavy water are given below :
1. Heavy water is used as a moderator in nuclear reactors.
2. Heavy water is more associated than ordinary water.
3. Heavy water is more efficient solvent than ordinary water.
Which of the above statements are true?
(a) 1 and 2
(b) 1, 2 and 3
(c) 2 and 3
(d) 1 and 3
