This essay examines materialism. This topic takes Thomas Aquinas' words as the breakthrough point to examine the analysis and understanding of "the basic school of philosophy" The viewpoint in the material regards God as the first promoter of things, which should belong to idealism, not materialism, excluding C and D; Because god is the first promoter, it should belong to objective idealism, not subjective idealism. If it is human consciousness, it is subjective idealism, so choose item B.