UGC NET Logical Reasoning Q39

Question

Given below are two premises (A and B). Four conclusions are drawn from them. Select the code that states validity drawn Conclusion(s) (taking the premises individually or jointly).
Premises:
1. No non-literates are graduates.
2. All non-graduates are non-teachers.
Conclusions:
(a) All teachers are non-literates.
(b) All teachers are graduates.
(c) All non-teachers are non-graduates.
(d) No non-literate is a teacher.