Whenever it rains heavily, either it gets flooded or we get a pleasent weather.
Explanation:
Here, p = rains heavily. q = it gets flooded. r = we get pleasant weather.
Statement: If p, (q or r)
Conclusion 1: p ⇒ (q or r) (i) p and ~q ⇒ r (ii) p and~r ⇒ q
Conclusion 2: ~(q or r) ⇒ ~p ∴ ~q and ~r ⇒ ~p
Option (b) corresponds to conclusion 2.
Hence, option (b).
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