The correct answer is A) Scientific theories continually change over a period of time.
Throughout the history of science, there have been numerous theories and experiments that were well-tested and explained but were contradicting the current scientific consensus. It is often very difficult for the scientific community to accept revolutionary ideas like Darwin's theory of natural selection, or Einstein's theory of relativity because those ideas challenge the common understanding of science. But, in order for science to progress and thrive, new ideas and findings should always be taken into consideration.
