Which Idea Underpins the Minimal Effects Theory

Which idea underpins the minimal effects theory?

A) People tend to be more open-minded about other perspectives and welcoming of challenges to their own beliefs.
B) More often than not, people tend to reject the comfort of their preexisting biases in favor of other perspectives.
C) People generally want to avoid ambivalence and seek information that conforms to their existing attitudes.
D) People generally consume a variety of different perspectives only during election season so as to be more informed.