I think the answer you are looking for is:
" They helped preserve knowledge from Ancient Greeks and Roman Texts".
Hope this helps!!
(Brainliest)
The correct answer is letter A.
Core Countries have the highest levels of economic development based on Wallerstein's World Systems Theory. This is because they tend to focus more on higher skill and capital-intensive productions compared to the rest of the world which focuses on low-skill and labor-intensive production.
If a listener says this, they are showing to the person who was speaking that they're being understood and that the listening emphasizes with them: so the best answer is that the listener is c. providing feedback by letting the speaker know what they think about the story.
Hope this helps! i wasn't 100% sure if you meant some of the words to be separate or together, but i tried!