UGC NET Paper 1 GA 2014 June Solved Paper

Given below are two premises and four conclusions drawn from those premises. Select the code that expresses conclusion drawn validly from the premises (separately or jointly).
Premises:
A. All dogs are mammals.
B. No cats are dogs.
Conclusions :
(i) No cats are mammals.
(ii) Some cats are mammals.
(iii) No dogs are cats.
(iv) No dogs are non-mammals.
Codes :