Consider the following statements regarding availability:
(i) It is generally conserved
(ii) It can either be negative or positive
(ii) It is the maximum theoretical work obtainable
(iv) It can be destroyed in irreversibility
Which of the above statements are correct?
(A) 3 and 4 (B) 1 and 2
(C) 1 and 3 (D) 2 and 4