Question

Which of the following statements is a tautology?

• A. $((∼p)∨q)⇒p$
• B. $p⇒((∼p)∨q)$
• C. $((∼p)∨q)⇒q$
• D. $q⇒((∼p)∨q)$

Answer 1

Answer: (D)

$q⇒((∼p)∨q)$

Answer 2

Truth table

So, the correct option is (D): $q⇒((∼p)∨q)$.