a scientist performed an expirement and observed that the gases expand at the same rate as a change in temperature. this observation is represented in the formula V100-V0=kV0 . why aren't these findings considered a scientific theory

A; they establish a claim that can be tested and retested by the scientific community

B; they describe what happens in nature without explaining why it happens

C; they explain the relationship between gases and tempature based on observation

D; they predict what will happen in nature without tests and supporting evidence