Consider the following statements:
1. Availability is generally conserved
2. Availability can either be negative or positive
3. Availability is the maximum theoretical work obtainable
4. Availability can be destroyed in irreversibility’s
Which of these statements are correct?
(a) 3 and 4 (b) 1 and 2
(c) 1 and 3 (d) 2 and 4