How does this section of dialogue further develop the
conflict?
It explains a new conflict between Arianna and
other students.
It explains why Arianna needs the principal to
believe her.
It gives examples of other times when the principal
did not believe Arianna.
It gives examples of times when Arianna proved to
be trustworthy.

Arianna is obviously in an argument with other students and she apparently needs the principal to be "on her side" for this one. the let down is that Arianna has been in this situation before when the principal did no believe he, however there is evidence that states she has proven to be trustworthy in the past. The climax would be if the principal will believe her or not.

 The CORRECT answer is : B, It explains why Arianna needs the principal to believe her. The other answer that was posted is INCORRECT.

Explanation:

Arianna is really wanting to prove to her principal that she can step foward and continue to do well. So she is convincing him to let her go on the trip.

the african society basically suffered the consequences of colonization and apartheid directly attacking the black people, first, during the colonialism and its main idea which which "white people" had better rights, affecting   them principally in the right to establish black people in their territories, access to quality education and health services and took away any civil right even to the black people to feel they have the same opportunities as the settlers.