Concept:An implication X→Y is equivalent to ∼X∨Y. This reduces the given pattern to a disjunction of complementary pairs, which is always true.Explanation:Let A=(p∧q) and B=(∼p∨r).Then the given pattern becomes (A→B)∨(B→A).Using X→Y≡∼X∨Y, we get (∼A∨B)∨(∼B∨A).Rearranging the terms gives (∼A∨A)∨(B∨∼B).Each complementary pair ∼A∨A and B∨∼B is always true.Therefore, the whole statement is true for all truth values of p, q, and r.Answer:The statement pattern is a tautology.Correct option: B.