Answer:
D. falsifiability.
Explanation:
Good scientific ideas are testable. They can be supported or they can be disproved by data, which is called falsifiability. Falsifiability is the capacity of good scientific ideas to be proved wrong. This is essential for the scientific method. If what is predicted in the hypothesis is proven right then there is a correlation between the hypothesis and the group in which it has been tested. Hypothesis that cannot be falsifiable are unscientific.
