The Quakers rejected slavery on the grounds that: it contributed to a maldistribution of wealth. it contradicted the Christian concept of brotherhood. it polluted the racial purity of the colonies. it might spark revolutionary sentiments against England. it would create tension between the northern and southern colonies.

The Quakers rejected slavery on the grounds that it contradicted the Christian concept of brotherhood.

Explanation:

The Quakers are a religious movement that originated among Christian English dissenters in the mid-17th century. At the end of the 1600s, many Quaker immigrants emigrated to North America, where William Penn founded Pennsylvania.

Quakers imagine that there is something of God within every human being, which, like an inner light, can guide one. The movement emphasizes that each person must find his or her own way to God, that God exists within every human being, and that the personal experience of God is the only guidance a human can have. Therefore, as God lived in every human, even in African-Americans, men were all equal and as a consequence brothers under God. This religious view, therefore, made them reject slavery during the 19th Century.

the answer is suffrage

the answer would be:

b. race