Which Statement Best Represents the Karl Popper's Criterion of Falsifiability

Multiple Choice

Which statement best represents the Karl Popper's criterion of falsifiability?

A) The most important property of a scientific theory is that it is capable of being supported by empirical data if it is true
B) The most important property of a scientific theory is that it is capable of being refuted by empirical data if it is false
C) When testing a theory, strong conclusions from a study can be drawn based on either supporting or refuting data
D) If there is a single study that does not support a theory it should be abandoned