C; to stop pathogens with light harming the host cell
Answer:
a theory cannot become a law
Explanation:
the difference between a scientific theory and a scientific law because a theory is an in depth explanation of an observed phenomenon. a law is a statement about an observed phenomenon or an unifying concept (i.e.: newtons law or gravity - no explanation on how it works or what it is just that it exists.)
I believe it is C, but i cant be sure
I hope i helped a little :)
Biology or Geology. These answers make the most sense to me.
