Each of the elements of Girelli' s recently completed design for a university library is copied from a different one of several historic libraries. The design includes various features from Classical Greek, Islamic, Mogul, and Romanesque structures. Since no one element in the design is original, it follows that the design of the library cannot be considered original. Which one of the following is a reasoning error made in the argument? ['concluding that an unknown instance of a phenomenon must have all the properties of the known instances', 'deriving a factual conclusion from evidence derived from reports of aesthetic preferences', 'generalizing illegitimately from a few instances of a certain kind to all instances of that kind', 'assuming that because something is true of each of the parts of a whole it is true of the whole itself']