Which situation would result in a theory being replaced rather than revised?

a. additional experiments are performed that confirm the existing theory.
b. new information is discovered that contradicts the existing theory.
c. scientists disagree on how to revise a theory, so they replace it instead.
d. new experiments to confirm the theory yield inconclusive results.

The correct option is B.

Science is a very dynamic subject, scientific investigations go on all the time, all over the world and new discoveries are been made on a daily basis. When new facts emerge about a scientific theory that is already in existence, the theory will be updated in accordance with the new discovery. In a situation where the new emerging fact contradict an existing theory, such a theory will be discarded and be replaced with the new one.

The correct option is B.

Science is a very dynamic subject, scientific investigations go on all the time, all over the world and new discoveries are been made on a daily basis. When new facts emerge about a scientific theory that is already in existence, the theory will be updated in accordance with the new discovery. In a situation where the new emerging fact contradict an existing theory, such a theory will be discarded and be replaced with the new one.

the answers are a and c