Journalist: A manufacturers' trade group that has long kept its membership list secret inadvertently sent me a document listing hundreds of manufacturing companies. A representative of the trade group later confirmed that every company listed in the document does indeed belong to the trade group. Because Bruch Industries is not listed on the document, it is evidently not a member of the trade group. The journalist's reasoning in the argument is flawed in that the journalist ['does not explain how it is that the trade group could have inadvertently sent out a secret document', 'does not present any evidence that the document names every member of the trade group', 'gives no reason to think that Bruch Industries would want to belong to the trade group', 'takes for granted the accuracy of a statement by a representative who had a reason to withhold information']