Journal editor: Our treasurer advises that because of our precarious financial situation, we should change from a paper version to an online version only if doing so will not increase the cost of publication. The cost of converting from a paper version to an online version is high; however, once the conversion is made, the cost per issue is much lower for an online version. Since a benefactor has agreed to cover the costs of conversion, and since we can safely assume that our treasurer is right, we should change to an online version.
The journal editor's argument is flawed in that itThe treasurer gives a necessary condition: the journal should switch only if switching will not increase publication costs. The editor then shows that this condition is probably met and concludes that the journal should switch.
The flaw is treating a necessary condition as sufficient: showing that switching is financially acceptable does not prove that the journal should switch.
(A) treats meeting a necessary condition for changing from a paper to an online version as a sufficient reason for changing
Correct. “Only if doing so will not increase the cost” means no cost increase is required for switching. It does not mean that if there is no cost increase, the journal definitely should switch.
(B) takes for granted that publishing a paper version rather than an online version is the reason the journal is in a precarious financial position
Wrong. The argument does not need to claim that paper publication caused the financial problem.
(C) overlooks the possibility that an online version would have other advantages over a paper version than cost
Wrong. Other advantages would support switching, not show a flaw in the argument.
(D) fails to rule out the possibility that the journal will remain in a precarious financial position whether it changes to an online version or not
Wrong. The argument is not claiming that switching will fully solve the financial problem.
(E) bases its conclusion on the argument of an authority speaking outside the authority's field of expertise
Wrong. The treasurer is giving financial advice, which is within a treasurer’s area.
Answer: (A)