consider the four tsatements: 1.(p→q) ٨(p٨~q) 2.(~p→r)٨(p↔q) 3.p→(~qVr) 4.~(p٨q) V (p↔q) Which one of these four ststements is a tautology.

consider the four tsatements: 1.(p→q) ٨(p٨~q) 2.(~p→r)٨(p↔q)

1.	consider the four tsatements: 1.(p→q) ٨(p٨~q) 2.(~p→r)٨(p↔q) 3.p→(~qVr) 4.~(p٨q) V (p↔q) Which one of these four ststements is a tautology.
A.	A
B.	B
C.	C
D.	D
Answer» E.