Diagramming (C)

@Julie, "Only if" generally introduces a necessary condition, so in a statement: A only if B, B is a necessary condition, thus if B is false, A is also false: ~ B - > ~A ~HR -> ~ GSS IF NOT Helen resigns THEN NOT George shift supervisor and A is a sufficient condition, thus if A is true, B must also be true: A -> B GSS -> HR The whole argument can be diagrammed as: GSS ->HR HR _________ GSS This is a flawed argument that exhibits a logical fallacy of affirming the consequent. Does this make sense? Let me know if you have any further questions.