Consider the following statements about critical point of water :

1. The latent heat is zero.

2. The liquid is denser than its vapour.

3. Steam generators can operate above this point.

Of these statements

(a) 1,2 and 3 are correct

(b) 1 and 2 are correct

(c) 2 and 3 are correct

(d) 1 and 3 are correct