My guess is C and D but just to be sure...
![My guess is C and D but just to be sure class=](https://us-static.z-dn.net/files/d62/6096ad27134732d1122c6bb709511dee.png)
Answer:
C
Explanation:
See if this sounds familiar: Scientists begin with a hypothesis, which is sort of a guess of what might happen. When the scientists investigate the hypothesis, they follow a line of reasoning and eventually formulate a theory. Once a theory has been tested thoroughly and is accepted, it becomes a scientific law