GRE Logical Reading: ETS-GRE逻辑单题ETS - 94723C1ASN6U7R38J$

The conclusion above logically depends on which of the following assumptions? A. The science of biology is not as precise as the sciences of physics and chemistry. B. The sciences of biology, physics, and chemistry are ultimately a single science. C. The laws of physics and chemistry explain a narrower range of phenomena than do the laws of biology. D. The laws of physics and chemistry hold throughout the universe. E. A scientific law is necessarily universal.