Which Quotation Is Most Clearly an Example of Extreme Ethnocentrism

Which quotation is most clearly an example of extreme ethnocentrism?

A) We must also acknowledge the pain and suffering reflected in the stories of Native Americans who had long resided on this land prior to the arrival of European newcomers.
B) Where did any other subgroup of people (other than White people) contribute to civilization?
C) We're one American family, and when any part of our family starts to feel separate or second-class or targeted, it tears at the very fabric of our nation.
D) We honor the vast contributions Jewish Americans have made to our world, and we recommit to standing up for the traditions we believe in and the values we share.