If pump NPSH requirements are not satisfied, then

Question

 Consider the following statements:

If pump NPSH requirements are not satisfied, then                         

1. It will not develop sufficient head to raise water
2. Its efficiency will be low
3. It will deliver very low discharge
4. It will be cavitated

Which of these statements are correct?

a) 1,2 and 3                 b) 1 and 4

c) 2,3 and 4                 d) 1,2,3 and 4