Consider the following statements:
1. Throttle governing improves quality of steam in the last few stages.
2. Internal efficiency of steam is not seriously affected by throttle governing.
3. Throttle governing is better than nozzle governing.
Which of these statements are correct?
(a) 1,2 and 3 (b) 1 and 3
(c) 2 and 3 (d) 1 and 2