The sophists believed in a relative understanding of truth and of culture. thus, they challenged that notion that greek culture was in any way superior to other cultures, or that there were absolute truths as some philosophers taught. they also introduced questionable practices such as teaching for pay. finally, they made advanced education available to anyone capable of paying their high fees, thus threatening the traditional system whereby the controlled education.

The correct answer is : Aristocracy

Explanation:

The sophists are known as the first formal teachers and they had a great influence on our culture. They became a threat to the Aristocracy because of their ideas, especially in education. The rational examinations were the thing they used to focus on. The aristocracy saw these teachers as subversive since the claim of teaching the art of politics. (Plato)

what is the other part to the question

answer; collective security;