the theory is revised or updated
The answer is B ; the theory is updated or revised
The answer is B on engenuity
Theory is a scientifically acceptable general principle. When an experiment with new information or new technology produces results that support an existing theory the theory is revised or updated. Correct B A scientific theory is not the end result of the scientific method. With more gathered information theories can be proven or rejected, improved. Over time the accuracy of the prediction becomes greater.
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. =)