Read the introduction. Every leader must become a competent public speaker. Leaders communicate their ideas to big groups of people, and they rally supporters with engaging oration. Critics suggest that some leaders are just as effective behind the scenes, working effectively without recognition, but the best leaders have charisma that can be conveyed through their speeches during public appearance events.

Which phrase is found in the author’s counterclaim?

every leader must become a competent public speaker
leaders communicate their ideas to big groups of people
some leaders are just as effective behind the scenes
they rally supporters with engaging oration

Some leaders are just as effective behind the scenes.

Explanation:

The main claim of the author in the given passage is the importance of being a competent public speaker for a person to be a leader. This claim is supported by his opinion that leaders need to be effective public speakers for "[they need] to communicate their ideas in big groups of people and [. . .] rally supporters with engaging oration."

And in the counterclaim, the author states that "some leaders are just as effective behind the scenes, working effectively without recognition". This is contrary to the claim that leaders should be effective public speakers.  

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.