The current move to patent computer programs is a move in the wrong direction and should be stopped. The patent system was originally designed solely to protect small-time inventors from exploitation, not to give large corporations control over a methodology. Any computer program is merely the implementation of a methodology. Which one of the following is an assumption on which the argument depends? ['The issue of whether or not to patent computer programs presents the patent system with problems that have never before arisen.', 'Computer programs should be developed not only by large corporations but by small-time inventors as well.', 'Large corporations should not hold patents for implementations of methodologies.', 'Implementing a methodology always requires less creative effort than does true invention.']