Carnegie invested in the Frick Coke Company because the Frick Coke Company is his main supplier of coke coal.
C. his comparison of moral courage to bravery in battle and intelligence
(Not sure, but I hope this helps)
Answer:
What he said: I write an argumentative letter in which he commented on an opinion that accused our civilization of closing in, and through which it became clear that the Islamic civilization contributed to the advancement of nations and interacted with them.
Explanation:
It means that throughout history one main perspective or viewpoint has been shown off or presented as fact while others have been ignored. The Caucasian perspective. However this quote is also an opinion and should NOT be taken as fact.