Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
Below are the choices and the answer is B.
a.) Models can be changed by scientists who are more famous than previous scientists.
b.) As technology advances, new experiments often expose problems in accepted theories.
c.) Scientists tend to value new theories because they are more exciting.
d.) A newer theory is more valid because it uses more mathematics.
