Which of the Following Statements Provides an Explanation for Group

Which of the following statements provides an explanation for group polarization?

A) Group members are more likely to be persuaded by novel arguments that support their position.
B) People who take time to express their views are found to be more persuasive than those who express their views faster.
C) A single group member who repeats their argument 3 times is more convincing than 3 people who voice the same opinion.
D) Information presented later in a discussion is more compelling than information presented at the beginning.