Terry: Some actions considered to be bad by our society have favorable consequences. But an action is good only if it has favorable consequences. So, some actions considered to be bad by our society are actually good.
Pat: I agree with your conclusion, but not with the reasons you give for it. Some good actions actually do not have favorable consequences. But no actions considered to be bad by our society have favorable consequences, so your conclusion, that some actions our society considers bad are actually good, still holds.
Which one of the following correctly describes both an error in Terry’s reasoning and an error in Pat’s reasoning?
(A) presupposing that if a certain property distinguishes one type of action from another type of action, then that property is one of many properties distinguishing the two types of action
(B) presupposing that if most actions of a certain type share a certain property, then all actions of that type share that property
(C) presupposing that if a certain property is shared by actions of a certain type in a given society, then that property is shared by actions of that type in every society
(D) presupposing that if an action’s having a certain property is necessary for its being a certain type of action, then having that property is sufficient for being that type of action
(E) presupposing that if a certain property is shared by two types of action, then that property is the only property distinguishing the two types of action from actions of other types