Which of the following are valid inferences?
InferencePremise 1Premise 2Conclusion1p∨qp∨q¬q¬q¬p¬p2pp¬p¬pqq3p∨qp∨q¬p∨r¬p∨rq∨rq∨r4p→qp→qr→qr→q¬r→¬p¬r→¬p
A. Inference 2
B. Inference 3
C. Inference 1
D. Inference 4
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