Question 21 0 / Suppose you validly derive line 5 (~Cv B) from the given premises. What description for the statement in line 5 should you provide? 1. (H --> B) -- > C 2. (Pv Q) --> (H VO) 3. ~C 4. PVQ 5. ~CvB (statement(s)# involved, rule name) O 1, 3 Modus Tollens 1, 3 Modus Tollens and Simplification O 3 conjunction 3 addition