Consider the following statements regarding Air Independent Propulsion (AIP) System:
1. The conventional submarines use diesel-electric engines, which require them to surface almost daily to get atmospheric oxygen for fuel combustion.
2. The AIP system-based submarines will be required to surface much less frequently, thus increasing their lethality and stealth multifold.
3. In a fuel cell-based AIP, an electrolytic fuel cell releases energy by combining hydrogen and oxygen, with only water as the waste product ensuring less marine pollution.
Which of the statements given above is/are correct?
1
1 and 2 only
2
2 and 3 only
3
1 and 3 only
4
1, 2 and 3