Consider the following statements: (i) Successor of a number can be obtained by add 1. (ii) The difference between successor and pre decessor of a number is smallest composite number. (iii) The difference between lowest natural number and whole number 0 is 1.

• A.  (i) and (ii) are correct
• B.  (ii) is correct only                     
• C.  (ii) and (iii) are correct
• D.  (i) and (iii) are correct