In an Actual Experiment, a Researcher Claims a Drug Cures

Multiple Choice

In an actual experiment, a researcher claims a drug cures a higher percentage of patients than the current therapy does.What is the null hypothesis, and why?

A) The new drug cures more people; because that's the researcher's claim.
B) The new drug cures more people; because the null hypothesis is based on the best drug.
C) The new drug is equal in performance to the old drug; because the null hypothesis always assumes no statistically significant difference exists.
D) The side effects of the current drug are the null hypothesis.