The most successful economies have been, and will continue to be, those that train as many people as possible in the human skills required to research, to develop, and to apply new technology. Japan is a model for this sort of training effort. Europe as a whole is in a weaker position: there is a shortage of skilled labor trained to use the new technologies, and there are not enough scientists able to develop and apply the technology. However, even in Japan there is a shortage of technically qualified people, and, like most European countries, Japan has far too many workers qualified to perform only menial tasks. Which one of the following can be properly inferred from the passage? ['To be economically more successful, Europe needs to train more people in the new technologies.', "Japan's successful economy depends upon an uncommonly narrow base of highly skilled labor.", "Japan is not the best country against which to measure a country's economic success.", 'European countries have economies that are more successful than those of most other countries.']