What happens when an experiment with new information or new technology produces results that support an existing theory?
a. the theory is considered proven.
b. the theory is revised or updated.
c. the theory becomes a law.
d. the evidence is ignored and thrown away.

A theory does not become a law! So, C is already out. 

In science, we always want to be updating and revising our information. We don't just say 'Oh, this supports my theory. Ah ha! It's proven! No more research is needed'. 

The best option here will most likely be B. =)

The answer should be a